diff --git a/Assets/Mirror/Runtime/NetworkServer.cs b/Assets/Mirror/Runtime/NetworkServer.cs
index d23ea53fc..55bc9bb6f 100644
--- a/Assets/Mirror/Runtime/NetworkServer.cs
+++ b/Assets/Mirror/Runtime/NetworkServer.cs
@@ -592,7 +592,7 @@ public static void RegisterHandler(MsgType msgType, NetworkMessageDelegate handl
             {
                 if (LogFilter.Debug) Debug.Log("NetworkServer.RegisterHandler replacing " + msgType);
             }
-            handlers[msgType] = MessagePacker.MessageHandler<T>(handler, requireAuthentication);
+            handlers[msgType] = MessagePacker.MessageHandler(handler, requireAuthentication);
         }
 
         /// <summary>