diff --git a/docs/app-config-guide.md b/docs/app-config-guide.md
index 40d7341..94a7cbc 100644
--- a/docs/app-config-guide.md
+++ b/docs/app-config-guide.md
@@ -8,6 +8,12 @@ title: App config guide
 
 Check [this approach](https://git.autonomic.zone/ruangrupa/login.lumbung.space).
 
+#### How do I create another admin user?
+
+- Under the `Master` realm > `Users` > `Add user`
+- Create the user and set a temporary password
+- Under the `Role Mappings` tab, move `admin` from `Available Roles` into `Assigned Roles`
+
 ## Nextcloud
 
 #### How do I customise the default home page when logging in?