diff --git a/websocket-sharp/Net/RequestStream.cs b/websocket-sharp/Net/RequestStream.cs
index 990c25b3..6bac41bf 100644
--- a/websocket-sharp/Net/RequestStream.cs
+++ b/websocket-sharp/Net/RequestStream.cs
@@ -198,7 +198,8 @@ namespace WebSocketSharp.Net
     }
 
     public override IAsyncResult BeginWrite (
-      byte[] buffer, int offset, int count, AsyncCallback callback, object state)
+      byte[] buffer, int offset, int count, AsyncCallback callback, object state
+    )
     {
       throw new NotSupportedException ();
     }