diff --git a/library/Icinga/Repository/DbRepository.php b/library/Icinga/Repository/DbRepository.php
index 379a754cf..12ef7ebe6 100644
--- a/library/Icinga/Repository/DbRepository.php
+++ b/library/Icinga/Repository/DbRepository.php
@@ -6,6 +6,7 @@ namespace Icinga\Repository;
 use Icinga\Data\Db\DbConnection;
 use Icinga\Data\Extensible;
 use Icinga\Data\Filter\Filter;
+use Icinga\Data\Filter\FilterExpression;
 use Icinga\Data\Reducible;
 use Icinga\Data\Updatable;
 use Icinga\Exception\IcingaException;