diff --git a/cookbook/security/custom_authentication_provider.rst b/cookbook/security/custom_authentication_provider.rst
index 42f098464ab..73f76f2857e 100644
--- a/cookbook/security/custom_authentication_provider.rst
+++ b/cookbook/security/custom_authentication_provider.rst
@@ -159,12 +159,6 @@ set an authenticated token in the security context if successful.
                 //     $this->securityContext->setToken(null);
                 // }
                 // return;
-
-                // Deny authentication with a '403 Forbidden' HTTP response
-                $response = new Response();
-                $response->setStatusCode(Response::HTTP_FORBIDDEN);
-                $event->setResponse($response);
-
             }
 
             // By default deny authorization