diff --git a/docs/user-guide/petset/bootstrapping/petset_vm.yaml b/docs/user-guide/petset/bootstrapping/petset_vm.yaml
index c506a1bac65..a3da5211a3d 100644
--- a/docs/user-guide/petset/bootstrapping/petset_vm.yaml
+++ b/docs/user-guide/petset/bootstrapping/petset_vm.yaml
@@ -27,7 +27,7 @@ spec:
         app: ub
       annotations:
         pod.alpha.kubernetes.io/initialized: "true"
-        pod.alpha.kubernetes.io/init-containers: '[
+        pod.beta.kubernetes.io/init-containers: '[
             {
                 "name": "rootfs",
                 "image": "ubuntu:15.10",