diff --git a/src/Symfony/Component/Security/Core/Authentication/Token/Storage/TokenStorageInterface.php b/src/Symfony/Component/Security/Core/Authentication/Token/Storage/TokenStorageInterface.php
index 218d750b8e..779109039b 100644
--- a/src/Symfony/Component/Security/Core/Authentication/Token/Storage/TokenStorageInterface.php
+++ b/src/Symfony/Component/Security/Core/Authentication/Token/Storage/TokenStorageInterface.php
@@ -30,7 +30,7 @@ interface TokenStorageInterface
     /**
      * Sets the authentication token.
      *
-     * @param TokenInterface $token A TokenInterface token, or null if no further authentication information should be stored
+     * @param TokenInterface|null $token A TokenInterface token, or null if no further authentication information should be stored
      */
     public function setToken(TokenInterface $token = null);
 }