diff --git a/security/user_checkers.rst b/security/user_checkers.rst
index ec8f49da522..cf38aafa57e 100644
--- a/security/user_checkers.rst
+++ b/security/user_checkers.rst
@@ -42,7 +42,7 @@ displayed to the user::
             }
         }
 
-        public function checkPostAuth(UserInterface $user, TokenInterface $token): void
+        public function checkPostAuth(UserInterface $user, ?TokenInterface $token = null): void
         {
             if (!$user instanceof AppUser) {
                 return;