diff --git a/content/en/docs/setup/independent/control-plane-flags.md b/content/en/docs/setup/independent/control-plane-flags.md
index 1929b1ae17..e3b5edfdd5 100644
--- a/content/en/docs/setup/independent/control-plane-flags.md
+++ b/content/en/docs/setup/independent/control-plane-flags.md
@@ -8,6 +8,8 @@ weight: 40
 
 {{% capture overview %}}
 
+{{< feature-state for_k8s_version="1.12" state="stable" >}}
+
 The kubeadm `ClusterConfiguration` object exposes the field `extraArgs` that can override the default flags passed to control plane
 components such as the APIServer, ControllerManager and Scheduler. The components are defined using the following fields: