diff --git a/nbxsync/jobs/cfggroup.py b/nbxsync/jobs/cfggroup.py
index 80fd2d65..be9dc2f9 100644
--- a/nbxsync/jobs/cfggroup.py
+++ b/nbxsync/jobs/cfggroup.py
@@ -302,13 +302,14 @@ def _propagate():
 class DeleteHostGroupAssignmentClonesJob:
     def __init__(self, **kwargs):
         self.configgroup_pk = kwargs['configgroup_pk']
+        self.zabbixhostgroup_pk = kwargs['zabbixhostgroup_pk']
 
     def run(self):
         assignments = ZabbixHostgroupAssignment.objects.filter(zabbixconfigurationgroup_id=self.configgroup_pk).select_related('assigned_object_type')
 
         def _delete():
             for assigned in assignments:
-                ZabbixHostgroupAssignment.objects.filter(assigned_object_type=assigned.assigned_object_type, assigned_object_id=assigned.assigned_object_id, zabbixconfigurationgroup_id=self.configgroup_pk).delete()
+                ZabbixHostgroupAssignment.objects.filter(zabbixhostgroup_id=self.zabbixhostgroup_pk, assigned_object_type=assigned.assigned_object_type, assigned_object_id=assigned.assigned_object_id, zabbixconfigurationgroup_id=self.configgroup_pk).delete()
 
         transaction.on_commit(_delete)
 
diff --git a/nbxsync/signals/zabbixhostgroupassignment.py b/nbxsync/signals/zabbixhostgroupassignment.py
index 61741f54..80728b44 100644
--- a/nbxsync/signals/zabbixhostgroupassignment.py
+++ b/nbxsync/signals/zabbixhostgroupassignment.py
@@ -33,4 +33,4 @@ def handle_postdelete_zabbixhostgroupassignment(sender, instance, **kwargs):
     if not is_configgroup_assignment(instance):
         return
 
-    delete_hostgroup_assignment_clones.delay(configgroup_pk=instance.assigned_object_id)
+    delete_hostgroup_assignment_clones.delay(configgroup_pk=instance.assigned_object_id, zabbixhostgroup_pk=instance.zabbixhostgroup_id)
diff --git a/nbxsync/worker.py b/nbxsync/worker.py
index b4a62201..65ee72e0 100644
--- a/nbxsync/worker.py
+++ b/nbxsync/worker.py
@@ -95,8 +95,8 @@ def propagate_hostgroup_assignment(assignment_pk):
 
 
 @job('low')
-def delete_hostgroup_assignment_clones(configgroup_pk):
-    DeleteHostGroupAssignmentClonesJob(configgroup_pk=configgroup_pk).run()
+def delete_hostgroup_assignment_clones(configgroup_pk, zabbixhostgroup_pk):
+    DeleteHostGroupAssignmentClonesJob(configgroup_pk=configgroup_pk, zabbixhostgroup_pk=zabbixhostgroup_pk).run()
 
 
 @job('low')