diff --git a/websocket-sharp/Net/WebHeaderCollection.cs b/websocket-sharp/Net/WebHeaderCollection.cs
index e4084719..21680e33 100644
--- a/websocket-sharp/Net/WebHeaderCollection.cs
+++ b/websocket-sharp/Net/WebHeaderCollection.cs
@@ -1707,7 +1707,7 @@ namespace WebSocketSharp.Net
     /// </exception>
     public override void Remove (string name)
     {
-      name = checkName (name);
+      name = checkName (name, "name");
 
       var headerType = getHeaderType (name);