diff --git a/APIKit/Request.swift b/APIKit/Request.swift
index 08bebf5e..56ed1359 100644
--- a/APIKit/Request.swift
+++ b/APIKit/Request.swift
@@ -71,7 +71,8 @@ public extension Request {
 
     // Use Result here because `throws` loses type info of an error (in Swift 2 beta 2)
     internal func createTaskInURLSession(URLSession: NSURLSession) -> Result<NSURLSessionDataTask, APIError> {
-        guard let components = NSURLComponents(URL: baseURL, resolvingAgainstBaseURL: true) else {
+        let URL = path.isEmpty ? baseURL : baseURL.URLByAppendingPathComponent(path)
+        guard let components = NSURLComponents(URL: URL, resolvingAgainstBaseURL: true) else {
             return .Failure(.InvalidBaseURL(baseURL))
         }
 
@@ -90,10 +91,6 @@ public extension Request {
             }
         }
 
-        if (!path.isEmpty) {
-            components.path = path.hasPrefix("/") ? path : "/" + path
-        }
-
         URLRequest.URL = components.URL
         URLRequest.HTTPMethod = method.rawValue
         URLRequest.setValue(requestBodyBuilder.contentTypeHeader, forHTTPHeaderField: "Content-Type")
diff --git a/APIKitTests/RequestCreateTaskInURLSessionTests.swift b/APIKitTests/RequestCreateTaskInURLSessionTests.swift
index 71bf6bce..fc0cb045 100644
--- a/APIKitTests/RequestCreateTaskInURLSessionTests.swift
+++ b/APIKitTests/RequestCreateTaskInURLSessionTests.swift
@@ -10,11 +10,12 @@ class RequestCreateTaskInURLSessionTest: XCTestCase {
     
     struct SampleRequest: Request {
         typealias Response = [String: AnyObject]
+        var b: String = ""
         var p: String = ""
         var m: HTTPMethod = .GET
         var params: [String: AnyObject] = [:]
         
-        var baseURL: NSURL { return NSURL(string: "https://example.com")! }
+        var baseURL: NSURL { return NSURL(string: b)! }
         var method: HTTPMethod { return m }
         var path: String { return p  }
         var parameters: [String: AnyObject] { return params }
@@ -55,83 +56,502 @@ class RequestCreateTaskInURLSessionTest: XCTestCase {
             
         }
         
-        var sampleRequest = SampleRequest()
+        var sampleRequest: SampleRequest
+        
+        // MARK: - baseURL = https://example.com
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
         sampleRequest.p = ""
         sampleRequest.m = .GET
         sampleRequest.params = [:]
         assertRequest(sampleRequest, pattern: "https://example.com")
         
         sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
         sampleRequest.p = "/"
         sampleRequest.m = .GET
         sampleRequest.params = [:]
         assertRequest(sampleRequest, pattern: "https://example.com/")
         
         sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
         sampleRequest.p = "/"
         sampleRequest.m = .GET
         sampleRequest.params = ["p": 1]
         assertRequest(sampleRequest, pattern: "https://example.com/?p=1")
         
         sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
         sampleRequest.p = "foo"
         sampleRequest.m = .GET
         sampleRequest.params = [:]
         assertRequest(sampleRequest, pattern: "https://example.com/foo")
         
         sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
         sampleRequest.p = "/foo"
         sampleRequest.m = .GET
         sampleRequest.params = [:]
         assertRequest(sampleRequest, pattern: "https://example.com/foo")
         
         sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
         sampleRequest.p = "/foo"
         sampleRequest.m = .GET
         sampleRequest.params = ["p": 1]
         assertRequest(sampleRequest, pattern: "https://example.com/foo?p=1")
         
         sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
         sampleRequest.p = "/foo/"
         sampleRequest.m = .GET
         sampleRequest.params = [:]
         assertRequest(sampleRequest, pattern: "https://example.com/foo/")
         
         sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
         sampleRequest.p = "/foo/"
         sampleRequest.m = .GET
         sampleRequest.params = ["p": 1]
         assertRequest(sampleRequest, pattern: "https://example.com/foo/?p=1")
         
         sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
         sampleRequest.p = "foo/bar"
         sampleRequest.m = .GET
         sampleRequest.params = [:]
         assertRequest(sampleRequest, pattern: "https://example.com/foo/bar")
         
         sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
         sampleRequest.p = "/foo/bar"
         sampleRequest.m = .GET
         sampleRequest.params = [:]
         assertRequest(sampleRequest, pattern: "https://example.com/foo/bar")
         
         sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
         sampleRequest.p = "/foo/bar"
         sampleRequest.m = .GET
         sampleRequest.params = ["p": 1]
         assertRequest(sampleRequest, pattern: "https://example.com/foo/bar?p=1")
         
         sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
         sampleRequest.p = "/foo/bar/"
         sampleRequest.m = .GET
         sampleRequest.params = [:]
         assertRequest(sampleRequest, pattern: "https://example.com/foo/bar/")
         
         sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
         sampleRequest.p = "/foo/bar/"
         sampleRequest.m = .GET
         sampleRequest.params = ["p": 1]
         assertRequest(sampleRequest, pattern: "https://example.com/foo/bar/?p=1")
         
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com"
+        sampleRequest.p = "foo//bar//"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/foo//bar//")
+        
+        // MARK: - baseURL = https://example.com/
+        
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = ""
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = "/"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com//")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = "/"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com//?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = "foo"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/foo")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = "/foo"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com//foo")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = "/foo"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com//foo?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = "/foo/"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com//foo/")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = "/foo/"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com//foo/?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = "foo/bar"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/foo/bar")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = "/foo/bar"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com//foo/bar")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = "/foo/bar"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com//foo/bar?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = "/foo/bar/"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com//foo/bar/")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = "/foo/bar/"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com//foo/bar/?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/"
+        sampleRequest.p = "foo//bar//"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/foo//bar//")
+        
+        // MARK: - baseURL = https://example.com/api
+        
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = ""
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = "/"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = "/"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = "foo"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = "/foo"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = "/foo"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = "/foo/"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo/")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = "/foo/"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo/?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = "foo/bar"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo/bar")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = "/foo/bar"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo/bar")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = "/foo/bar"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo/bar?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = "/foo/bar/"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo/bar/")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = "/foo/bar/"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo/bar/?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api"
+        sampleRequest.p = "foo//bar//"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo//bar//")
+        
+        // MARK: - baseURL = https://example.com/api/
+        
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = ""
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = "/"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api//")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = "/"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com/api//?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = "foo"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = "/foo"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api//foo")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = "/foo"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com/api//foo?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = "/foo/"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api//foo/")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = "/foo/"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com/api//foo/?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = "foo/bar"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo/bar")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = "/foo/bar"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api//foo/bar")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = "/foo/bar"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com/api//foo/bar?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = "/foo/bar/"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api//foo/bar/")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = "/foo/bar/"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com/api//foo/bar/?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com/api/"
+        sampleRequest.p = "foo//bar//"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com/api/foo//bar//")
+        
+        //　MARK: - baseURL = https://example.com///
+        
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = ""
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com///")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = "/"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com////")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = "/"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com////?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = "foo"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com///foo")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = "/foo"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com////foo")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = "/foo"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com////foo?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = "/foo/"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com////foo/")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = "/foo/"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com////foo/?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = "foo/bar"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com///foo/bar")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = "/foo/bar"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com////foo/bar")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = "/foo/bar"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com////foo/bar?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = "/foo/bar/"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com////foo/bar/")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = "/foo/bar/"
+        sampleRequest.m = .GET
+        sampleRequest.params = ["p": 1]
+        assertRequest(sampleRequest, pattern: "https://example.com////foo/bar/?p=1")
+        
+        sampleRequest = SampleRequest()
+        sampleRequest.b = "https://example.com///"
+        sampleRequest.p = "foo//bar//"
+        sampleRequest.m = .GET
+        sampleRequest.params = [:]
+        assertRequest(sampleRequest, pattern: "https://example.com///foo//bar//")
     }
 }