diff --git a/keystone/values.yaml b/keystone/values.yaml
index 7b851653be..fb9ec26946 100644
--- a/keystone/values.yaml
+++ b/keystone/values.yaml
@@ -395,6 +395,9 @@ network_policy:
         - podSelector:
             matchLabels:
               application: placement
+        - podSelector:
+            matchLabels:
+              application: prometheus-openstack-exporter
         ports:
         - protocol: TCP
           port: 80