diff --git a/websocket-sharp/Net/HttpConnection.cs b/websocket-sharp/Net/HttpConnection.cs
index 50f92f7a..2b0ea51e 100644
--- a/websocket-sharp/Net/HttpConnection.cs
+++ b/websocket-sharp/Net/HttpConnection.cs
@@ -241,6 +241,7 @@ namespace WebSocketSharp.Net
       }
 
       _timer.Dispose ();
+
       _timer = null;
     }