diff --git a/websocket-sharp/Net/HttpListenerRequest.cs b/websocket-sharp/Net/HttpListenerRequest.cs
index ee690b37..fc9c92eb 100644
--- a/websocket-sharp/Net/HttpListenerRequest.cs
+++ b/websocket-sharp/Net/HttpListenerRequest.cs
@@ -275,7 +275,7 @@ namespace WebSocketSharp.Net
     /// </value>
     public bool IsLocal {
       get {
-        return RemoteEndPoint.Address.IsLocal ();
+        return _connection.IsLocal;
       }
     }