diff --git a/application/controllers/ErrorController.php b/application/controllers/ErrorController.php
index 1c01b1672..71085c32d 100644
--- a/application/controllers/ErrorController.php
+++ b/application/controllers/ErrorController.php
@@ -1,6 +1,8 @@
 <?php
 /* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
 
+namespace Icinga\Controllers;
+
 use Icinga\Application\Icinga;
 use Icinga\Application\Logger;
 use Icinga\Exception\Http\HttpMethodNotAllowedException;