diff --git a/modules/monitoring/library/Monitoring/Backend/Ido/Query/IdoQuery.php b/modules/monitoring/library/Monitoring/Backend/Ido/Query/IdoQuery.php
index 85d9169a9..c8d2e3140 100644
--- a/modules/monitoring/library/Monitoring/Backend/Ido/Query/IdoQuery.php
+++ b/modules/monitoring/library/Monitoring/Backend/Ido/Query/IdoQuery.php
@@ -479,8 +479,12 @@ abstract class IdoQuery extends DbQuery
         }
     }
 
+    /**
+     * {@inheritdoc}
+     */
     public function addFilter(Filter $filter)
     {
+        $filter = clone $filter;
         $this->requireFilterColumns($filter);
         return parent::addFilter($filter);
     }