diff --git a/lib/async/http/protocol/http1/response.rb b/lib/async/http/protocol/http1/response.rb
index 67e402d6..7a987dc9 100644
--- a/lib/async/http/protocol/http1/response.rb
+++ b/lib/async/http/protocol/http1/response.rb
@@ -18,9 +18,10 @@ def self.read(connection, request)
 					
 					UPGRADE = 'upgrade'
 
-					# @param reason [String] HTTP response line reason, ignored.
+					# @param reason [String] HTTP response line reason phrase
 					def initialize(connection, version, status, reason, headers, body)
 						@connection = connection
+						@reason = reason
 						
 						protocol = headers.delete(UPGRADE)
 						
@@ -30,6 +31,10 @@ def initialize(connection, version, status, reason, headers, body)
 					def connection
 						@connection
 					end
+
+					def reason
+						@reason
+					end
 					
 					def hijack?
 						@body.nil?