diff --git a/application/controllers/AuthenticationController.php b/application/controllers/AuthenticationController.php
index 7ed492b63..1a16408b0 100644
--- a/application/controllers/AuthenticationController.php
+++ b/application/controllers/AuthenticationController.php
@@ -1,7 +1,7 @@
 <?php
 /* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
 
-# namespace Icinga\Application\Controllers;
+namespace Icinga\Controllers;
 
 use Icinga\Application\Icinga;
 use Icinga\Forms\Authentication\LoginForm;