diff --git a/src/Symfony/Component/Security/Http/Firewall/AbstractAuthenticationListener.php b/src/Symfony/Component/Security/Http/Firewall/AbstractAuthenticationListener.php
index 1caaf0af0b..a7301db203 100644
--- a/src/Symfony/Component/Security/Http/Firewall/AbstractAuthenticationListener.php
+++ b/src/Symfony/Component/Security/Http/Firewall/AbstractAuthenticationListener.php
@@ -177,7 +177,7 @@ abstract class AbstractAuthenticationListener implements ListenerInterface
      *
      * @param Request $request A Request instance
      *
-     * @return TokenInterface The authenticated token, or null if full authentication is not possible
+     * @return TokenInterface|Response|null The authenticated token, null if full authentication is not possible, or a Response
      *
      * @throws AuthenticationException if the authentication fails
      */