diff --git a/helm/core/templates/deployment.yaml b/helm/core/templates/deployment.yaml
index 7a472e293..6ce2bbb87 100644
--- a/helm/core/templates/deployment.yaml
+++ b/helm/core/templates/deployment.yaml
@@ -203,6 +203,9 @@ spec:
             value: {{ $val | quote }}
           {{- end }}
           ports:
+          - containerPort: 15020
+            protocol: TCP
+            name: istio-prom
           - containerPort: 15090
             protocol: TCP
             name: http-envoy-prom