diff --git a/modules/monitoring/library/Monitoring/Backend/Ido/Query/ServicedowntimestarthistoryQuery.php b/modules/monitoring/library/Monitoring/Backend/Ido/Query/ServicedowntimestarthistoryQuery.php
index 7b1f1989a..b60d13d5d 100644
--- a/modules/monitoring/library/Monitoring/Backend/Ido/Query/ServicedowntimestarthistoryQuery.php
+++ b/modules/monitoring/library/Monitoring/Backend/Ido/Query/ServicedowntimestarthistoryQuery.php
@@ -76,14 +76,8 @@ class ServicedowntimestarthistoryQuery extends IdoQuery
             array()
         )->join(
             array('so' => $this->prefix . 'objects'),
-            'so.object_id = sdh.object_id',
+            'so.object_id = sdh.object_id AND so.is_active = 1 AND so.objecttype_id = 2',
             array()
-        )->where(
-            'so.is_active = ?',
-            1
-        )->where(
-            'so.objecttype_id = ?',
-            2
         );
 
         if (@func_get_arg(0) === false) {
@@ -112,15 +106,8 @@ class ServicedowntimestarthistoryQuery extends IdoQuery
             array()
         )->join(
             array('hgo' => $this->prefix . 'objects'),
-            'hgo.object_id = hg.hostgroup_object_id',
+            'hgo.object_id = hg.hostgroup_object_id AND hgo.is_active = 1 AND hgo.objecttype_id = 3',
             array()
-        )->where(
-            'hgo.is_active = ?',
-            1
-        )
-        ->where(
-            'hgo.objecttype_id = ?',
-            3
         );
         $this->select->group(array('sdh.downtimehistory_id', 'so.name1', 'so.name2'));
     }
@@ -153,15 +140,8 @@ class ServicedowntimestarthistoryQuery extends IdoQuery
             array()
         )->join(
             array('sgo' => $this->prefix . 'objects'),
-            'sgo.object_id = sg.servicegroup_object_id',
+            'sgo.object_id = sg.servicegroup_object_id AND sgo.is_active = 1 AND sgo.objecttype_id = 4',
             array()
-        )->where(
-            'sgo.is_active = ?',
-            1
-        )
-        ->where(
-            'sgo.objecttype_id = ?',
-            4
         );
         $this->select->group(array('sdh.downtimehistory_id', 'so.name1', 'so.name2'));
     }