diff --git a/install/0000_90_machine-api-operator_05_networkpolicy-allow-ingress-metal.yaml b/install/0000_90_machine-api-operator_05_networkpolicy-allow-ingress-metal.yaml
index 2e52379fb..571345a57 100644
--- a/install/0000_90_machine-api-operator_05_networkpolicy-allow-ingress-metal.yaml
+++ b/install/0000_90_machine-api-operator_05_networkpolicy-allow-ingress-metal.yaml
@@ -29,6 +29,8 @@ spec:
       port: 8084 # image customization service
     - protocol: TCP
       port: 9608 # prometheus exporter for ironic
+    - protocol: TCP
+      port: 6190 # ironic networking JSON-RPC
     - protocol: TCP
       port: 9447 # bare metal webhook service
   podSelector: {}