diff --git a/websocket-sharp/Server/HttpServer.cs b/websocket-sharp/Server/HttpServer.cs
index 43ed6f8b..c8a9c58e 100644
--- a/websocket-sharp/Server/HttpServer.cs
+++ b/websocket-sharp/Server/HttpServer.cs
@@ -287,8 +287,7 @@ namespace WebSocketSharp.Server
         throw new ArgumentOutOfRangeException ("port", msg);
       }
 
-      var host = convertToString (address);
-      init (host, address, port, secure);
+      init (address.ToString (true), address, port, secure);
     }
 
     #endregion