diff --git a/package.json b/package.json
index 6c76fbf..9acb885 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "testcafe-browser-provider-browserstack",
-  "version": "1.7.1",
+  "version": "1.7.2",
   "description": "browserstack TestCafe browser provider plugin.",
   "repository": "https://github.com/DevExpress/testcafe-browser-provider-browserstack",
   "engines": {
diff --git a/src/backends/automate.js b/src/backends/automate.js
index c5c3a07..d8ddd49 100644
--- a/src/backends/automate.js
+++ b/src/backends/automate.js
@@ -161,9 +161,16 @@ export default class AutomateBackend extends BaseBackend {
     }
 
     async closeBrowser (id) {
-        clearInterval(this.sessions[id].interval);
+        const session = this.sessions[id];
 
-        await requestApi(BROWSERSTACK_API_PATHS.deleteSession(this.sessions[id].sessionId));
+        if (!session)
+            return;
+
+        delete this.sessions[id];
+            
+        clearInterval(session.interval);
+
+        await requestApi(BROWSERSTACK_API_PATHS.deleteSession(session.sessionId));
     }
 
     async takeScreenshot (id, screenshotPath) {
diff --git a/test/mocha/browser-names-test.js b/test/mocha/browser-names-test.js
index 63bd22a..4303b0d 100644
--- a/test/mocha/browser-names-test.js
+++ b/test/mocha/browser-names-test.js
@@ -17,22 +17,40 @@ describe('Browser names', function () {
     });
 
     it('Should return list of common browsers and devices', function () {
+        const IS_AUTOMATE = process.env['BROWSERSTACK_USE_AUTOMATE'] && process.env['BROWSERSTACK_USE_AUTOMATE'] !== '0';
+
+        const REST_BROWSER_NAMES = [
+            'chrome@51.0:OS X Mavericks',
+            'firefox@45.0:OS X Yosemite',
+            'safari@9.1:OS X El Capitan',
+            'ie@9.0:Windows 7',
+            'ie@10.0:Windows 8',
+            'ie@11.0:Windows 8.1',
+            'edge@15.0:Windows 10',
+            'iPhone 7@10.3',
+            'iPhone SE@11.2',
+            'iPhone XR@12.1',
+            'Google Nexus 6@6.0'
+        ];
+        
+        const AUTOMATE_BROWSER_NAMES = [
+            'chrome@51.0:OS X Mavericks',
+            'firefox@45.0:OS X Yosemite',
+            'safari@9.1:OS X El Capitan',
+            'ie@9.0:Windows 7',
+            'ie@10.0:Windows 8',
+            'ie@11.0:Windows 8.1',
+            'edge@15.0:Windows 10',
+            'iPhone 7@10',
+            'iPhone SE@11',
+            'iPhone XR@12',
+            'Google Nexus 6@6.0'
+        ];
+
         return browserStackProvider
             .getBrowserList()
             .then(function (list) {
-                expect(list).to.include.members([
-                    'chrome@51.0:OS X Mavericks',
-                    'firefox@45.0:OS X Yosemite',
-                    'safari@9.1:OS X El Capitan',
-                    'ie@9.0:Windows 7',
-                    'ie@10.0:Windows 8',
-                    'ie@11.0:Windows 8.1',
-                    'edge@15.0:Windows 10',
-                    'iPhone 7@10.3',
-                    'iPhone SE@11.2',
-                    'iPhone XR@12.1',
-                    'Google Nexus 6@6.0'
-                ]);
+                expect(list).to.include.members(IS_AUTOMATE ? AUTOMATE_BROWSER_NAMES : REST_BROWSER_NAMES);
             });
     });