diff --git a/modules/monitoring/library/Monitoring/DataView/Servicedowntime.php b/modules/monitoring/library/Monitoring/DataView/Servicedowntime.php
index 67664fbc4..09407ebaa 100644
--- a/modules/monitoring/library/Monitoring/DataView/Servicedowntime.php
+++ b/modules/monitoring/library/Monitoring/DataView/Servicedowntime.php
@@ -41,6 +41,7 @@ class Servicedowntime extends DataView
         return array(
             'host', 'host_alias',
             'hostgroup', 'hostgroup_alias', 'hostgroup_name',
+            'instance_name',
             'service',
             'servicegroup', 'servicegroup_alias', 'servicegroup_name'
         );