diff --git a/websocket-sharp/Net/QueryStringCollection.cs b/websocket-sharp/Net/QueryStringCollection.cs
index bfcda2cb..2e925e2d 100644
--- a/websocket-sharp/Net/QueryStringCollection.cs
+++ b/websocket-sharp/Net/QueryStringCollection.cs
@@ -134,9 +134,6 @@ namespace WebSocketSharp.Net
 
     public override string ToString ()
     {
-      if (Count == 0)
-        return String.Empty;
-
       var buff = new StringBuilder ();
 
       foreach (var key in AllKeys)