diff --git a/library/Icinga/Authentication/Manager.php b/library/Icinga/Authentication/Manager.php
index 9d86b6ad6..8a150c8b0 100644
--- a/library/Icinga/Authentication/Manager.php
+++ b/library/Icinga/Authentication/Manager.php
@@ -4,7 +4,7 @@
 namespace Icinga\Authentication;
 
 use Exception;
-use Icinga\Authentication\Usergroup\UserGroupBackend;
+use Icinga\Authentication\UserGroup\UserGroupBackend;
 use Icinga\Application\Config;
 use Icinga\Exception\IcingaException;
 use Icinga\Exception\NotReadableError;