diff --git a/installers/docker/osm_pods/ng-prometheus.yaml b/installers/docker/osm_pods/ng-prometheus.yaml
index 98dd1e8..0172aaf 100644
--- a/installers/docker/osm_pods/ng-prometheus.yaml
+++ b/installers/docker/osm_pods/ng-prometheus.yaml
@@ -36,7 +36,7 @@
       - name: osm_rules
         rules:
         - record: vm_status_extended
-          expr: (last_over_time(vm_status[1m]) * on (vm_id, vim_id) group_left(ns_id, vnf_id, vdu_id, project_id, job) last_over_time(ns_topology[1m])) or (last_over_time(ns_topology[1m]) * -1)
+          expr: (last_over_time(vm_status[1m]) * on (vm_id, vim_id) group_left(ns_id, vnf_id, vdu_id, project_id, job, vdu_name, vnf_member_index) last_over_time(ns_topology[1m])) or (last_over_time(ns_topology[1m]) * -1)
           labels:
             job: osm_prometheus
         - record: vnf_status