diff --git a/inventory/sample/group_vars/k8s-cluster/addons.yml b/inventory/sample/group_vars/k8s-cluster/addons.yml
index 36756ac1b..cdb501cf1 100644
--- a/inventory/sample/group_vars/k8s-cluster/addons.yml
+++ b/inventory/sample/group_vars/k8s-cluster/addons.yml
@@ -79,7 +79,7 @@ rbd_provisioner_enabled: false
 ingress_nginx_enabled: false
 # ingress_nginx_host_network: false
 # ingress_nginx_nodeselector:
-#   beta.kubernetes.io/os: "linux": ""
+#   beta.kubernetes.io/os: "linux"
 # ingress_nginx_tolerations:
 #   - key: "node-role.kubernetes.io/master"
 #     operator: "Equal"