diff --git a/websocket-sharp/Server/HttpServer.cs b/websocket-sharp/Server/HttpServer.cs
index 2c9ba30c..3bace8d5 100644
--- a/websocket-sharp/Server/HttpServer.cs
+++ b/websocket-sharp/Server/HttpServer.cs
@@ -1476,6 +1476,7 @@ namespace WebSocketSharp.Server
     {
       if (_secure) {
         string msg;
+
         if (!checkCertificate (out msg))
           throw new InvalidOperationException (msg);
       }