diff --git a/websocket-sharp/Server/WebSocketServer.cs b/websocket-sharp/Server/WebSocketServer.cs
index 24c96f4a..65c2936d 100644
--- a/websocket-sharp/Server/WebSocketServer.cs
+++ b/websocket-sharp/Server/WebSocketServer.cs
@@ -756,6 +756,7 @@ namespace WebSocketSharp.Server
 
       if (configuration.ServerCertificate == null) {
         message = "There is no server certificate for secure connection.";
+
         return false;
       }