diff --git a/src/Symfony/Component/Security/Core/Authentication/Token/UsernamePasswordToken.php b/src/Symfony/Component/Security/Core/Authentication/Token/UsernamePasswordToken.php
index 71d19adc14..7bfc556bdb 100644
--- a/src/Symfony/Component/Security/Core/Authentication/Token/UsernamePasswordToken.php
+++ b/src/Symfony/Component/Security/Core/Authentication/Token/UsernamePasswordToken.php
@@ -27,7 +27,7 @@ class UsernamePasswordToken extends AbstractToken
      * Constructor.
      *
      * @param string|object            $user        The username (like a nickname, email address, etc.), or a UserInterface instance or an object implementing a __toString method
-     * @param string                   $credentials This usually is the password of the user
+     * @param mixed                    $credentials This usually is the password of the user
      * @param string                   $providerKey The provider key
      * @param (RoleInterface|string)[] $roles       An array of roles
      *