diff --git a/minimal-cluster.cfg b/minimal-cluster.cfg
index 716bc95..127a19a 100644
--- a/minimal-cluster.cfg
+++ b/minimal-cluster.cfg
@@ -1,3 +1,4 @@
+---
 # Copyright 2019 Ciena Corporation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,7 +16,7 @@
 kind: Cluster
 apiVersion: kind.sigs.k8s.io/v1alpha3
 nodes:
-- role: control-plane
-  extraPortMappings:
-- role: worker
-- role: worker
+  - role: control-plane
+    extraPortMappings:
+  - role: worker
+  - role: worker