diff --git a/keystone/meta/grafana.yml b/keystone/meta/grafana.yml
index 5fab50f..33e9ad8 100644
--- a/keystone/meta/grafana.yml
+++ b/keystone/meta/grafana.yml
@@ -44,7 +44,7 @@
               type: dashboard
             target:
               cluster_status:
-                expr: avg(openstack_api_check_status{service=~\"keystone.*public.*\"})
+                expr: avg(openstack_api_check_status{service=~"keystone.*public.*"})
   service_level:
     datasource: influxdb
     row: