diff --git a/Assets/Mirror/Authenticators/BasicAuthenticator.cs b/Assets/Mirror/Authenticators/BasicAuthenticator.cs
index f66b7b89e..0fdc7e2e0 100644
--- a/Assets/Mirror/Authenticators/BasicAuthenticator.cs
+++ b/Assets/Mirror/Authenticators/BasicAuthenticator.cs
@@ -139,7 +139,7 @@ IEnumerator DelayedDisconnect(NetworkConnectionToClient conn, float waitTime)
         public override void OnStartClient()
         {
             // register a handler for the authentication response we expect from server
-            NetworkClient.RegisterHandler<AuthResponseMessage>((Action<AuthResponseMessage>)OnAuthResponseMessage, false);
+            NetworkClient.RegisterHandler<AuthResponseMessage>(OnAuthResponseMessage, false);
         }
 
         /// <summary>
diff --git a/Assets/Mirror/Authenticators/DeviceAuthenticator.cs b/Assets/Mirror/Authenticators/DeviceAuthenticator.cs
index a6fe5da8b..6723cc98d 100644
--- a/Assets/Mirror/Authenticators/DeviceAuthenticator.cs
+++ b/Assets/Mirror/Authenticators/DeviceAuthenticator.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using UnityEngine;
 
 namespace Mirror.Authenticators
@@ -80,7 +80,7 @@ void OnAuthRequestMessage(NetworkConnectionToClient conn, AuthRequestMessage msg
         public override void OnStartClient()
         {
             // register a handler for the authentication response we expect from server
-            NetworkClient.RegisterHandler<AuthResponseMessage>((Action<AuthResponseMessage>)OnAuthResponseMessage, false);
+            NetworkClient.RegisterHandler<AuthResponseMessage>(OnAuthResponseMessage, false);
         }
 
         /// <summary>