diff --git a/test/netstd/Server/TestServer.cs b/test/netstd/Server/TestServer.cs
index 8db92dc..d15ca71 100644
--- a/test/netstd/Server/TestServer.cs
+++ b/test/netstd/Server/TestServer.cs
@@ -560,7 +560,7 @@
                         }
 
                         transFactory = new TTransportFactory(); // framed/buffered is built into socket transports
-                        trans = new TTlsServerSocketTransport( param.port, param.buffering, cert,
+                        trans = new TTlsServerSocketTransport( param.port, cert, param.buffering,
                             (sender, certificate, chain, errors) => true, 
                             null, SslProtocols.Tls | SslProtocols.Tls11 | SslProtocols.Tls12);
                         break;