diff --git a/websocket-sharp/Net/WebHeaderCollection.cs b/websocket-sharp/Net/WebHeaderCollection.cs
index 440a3203..583d2c3d 100644
--- a/websocket-sharp/Net/WebHeaderCollection.cs
+++ b/websocket-sharp/Net/WebHeaderCollection.cs
@@ -1720,6 +1720,7 @@ namespace WebSocketSharp.Net
 
       checkRestricted (name, HttpHeaderType.Request);
       checkAllowed (HttpHeaderType.Request);
+
       set (name, value, HttpHeaderType.Request);
     }