diff --git a/kubernetes-templates/semaphoreui.yml b/kubernetes-templates/semaphoreui.yml
index 6119d07..f7fdc7a 100644
--- a/kubernetes-templates/semaphoreui.yml
+++ b/kubernetes-templates/semaphoreui.yml
@@ -32,7 +32,7 @@ subjects:
 roleRef:
   kind: Role
   name: semaphore-role
-  apiGroups: rbac.authorization.k8s.io
+  apiGroup: rbac.authorization.k8s.io
 ---
 apiVersion: v1
 kind: PersistentVolumeClaim