diff --git a/README.md b/README.md
index 44e1df8..6a0e1bf 100644
--- a/README.md
+++ b/README.md
@@ -80,7 +80,7 @@ docker compose up -d
 **And you are done!** The application is ready to use. You can create the first administrative user with the following command after attaching to the `app` container:
 
 ```
-./mapg user:add EMAIL PASSWORD admin
+./mapg user:add EMAIL USERNAME PASSWORD admin
 ```
 
 ## Development