diff --git a/neutron/files/grafana_dashboards/neutron_l2_prometheus.json b/neutron/files/grafana_dashboards/neutron_l2_prometheus.json
index b755753..aef97b6 100755
--- a/neutron/files/grafana_dashboards/neutron_l2_prometheus.json
+++ b/neutron/files/grafana_dashboards/neutron_l2_prometheus.json
@@ -736,7 +736,7 @@
           "tableColumn": "",
           "targets": [
             {
-              "expr": "openstack_neutron_agents{service=\"neutron-openvswitch-agent|neutron-linuxbridge-agent\",state=\"up\"}",
+              "expr": "openstack_neutron_agents{service=~\"neutron-openvswitch-agent|neutron-linuxbridge-agent\",state=\"up\"}",
               "format": "time_series",
               "intervalFactor": 2,
               "refId": "A",
@@ -1063,7 +1063,7 @@
           "tableColumn": "",
           "targets": [
             {
-              "expr": "openstack_neutron_agents{service=\"neutron-openvswitch-agent|neutron-linuxbridge-agent\",state=\"disabled\"}",
+              "expr": "openstack_neutron_agents{service=~\"neutron-openvswitch-agent|neutron-linuxbridge-agent\",state=\"disabled\"}",
               "format": "time_series",
               "intervalFactor": 2,
               "refId": "A",
@@ -1390,7 +1390,7 @@
           "tableColumn": "",
           "targets": [
             {
-              "expr": "openstack_neutron_agents{service=\"neutron-openvswitch-agent|neutron-linuxbridge-agent\",state=\"down\"}",
+              "expr": "openstack_neutron_agents{service=~\"neutron-openvswitch-agent|neutron-linuxbridge-agent\",state=\"down\"}",
               "format": "time_series",
               "intervalFactor": 2,
               "refId": "A",