diff --git a/websocket-sharp/Net/ChunkedRequestStream.cs b/websocket-sharp/Net/ChunkedRequestStream.cs
index bb42b0e4..3194ebb3 100644
--- a/websocket-sharp/Net/ChunkedRequestStream.cs
+++ b/websocket-sharp/Net/ChunkedRequestStream.cs
@@ -190,6 +190,7 @@ namespace WebSocketSharp.Net
         throw new ArgumentNullException ("asyncResult");
 
       var ares = asyncResult as HttpStreamAsyncResult;
+
       if (ares == null)
         throw new ArgumentException ("A wrong IAsyncResult.", "asyncResult");