diff --git a/docs/13-kube-apiserver-to-kubelet.md b/docs/13-kube-apiserver-to-kubelet.md
index 1f2ec9a..a8d05b9 100644
--- a/docs/13-kube-apiserver-to-kubelet.md
+++ b/docs/13-kube-apiserver-to-kubelet.md
@@ -50,7 +50,7 @@ roleRef:
 subjects:
   - apiGroup: rbac.authorization.k8s.io
     kind: User
-    name: system:kube-apiserver
+    name: kube-apiserver
 EOF
 ```
 Reference: https://kubernetes.io/docs/reference/access-authn-authz/rbac/#rolebinding-and-clusterrolebinding