diff --git a/websocket-sharp/Net/HttpConnection.cs b/websocket-sharp/Net/HttpConnection.cs
index abf1a98b..006e363c 100644
--- a/websocket-sharp/Net/HttpConnection.cs
+++ b/websocket-sharp/Net/HttpConnection.cs
@@ -221,9 +221,6 @@ namespace WebSocketSharp.Net
       if (_stream == null)
         return;
 
-      _inputStream = null;
-      _outputStream = null;
-
       _stream.Dispose ();
 
       _stream = null;