diff --git a/docs/multi-cluster-ingress.md b/docs/multi-cluster-ingress.md
index 19fdfb89c..946aa1af6 100644
--- a/docs/multi-cluster-ingress.md
+++ b/docs/multi-cluster-ingress.md
@@ -121,6 +121,7 @@ deploy.yaml:
 <summary>unfold me to see the yaml</summary>
 
 ```yaml
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: web