diff --git a/src/Security/Core/User/LdapUserProvider.php b/src/Security/Core/User/LdapUserProvider.php
index 80a6606..c159510 100644
--- a/src/Security/Core/User/LdapUserProvider.php
+++ b/src/Security/Core/User/LdapUserProvider.php
@@ -50,7 +50,7 @@ public function __construct($name, Ldap $ldap, LoggerInterface $logger = null, a
             'roles' => array(
                 // role => group
             ),
-            'class' => 'Symfony\\Component\\Security\\Core\\User\\User',
+            'class' => 'Radebatz\\Silex\\LdapAuth\\Security\\Core\\User\\LdapUser',
             'filter' => '(&(objectClass=user)(sAMAccountName=%s))',
             'baseDn' => null,
         );