diff --git a/README.md b/README.md
index 90215c1..4127e4a 100644
--- a/README.md
+++ b/README.md
@@ -124,6 +124,8 @@ docker-compose exec citizen-front bash
 root@9c0fea7720a0:/home/appuser/citizen/frontend# npm run ng serve -- --host 0.0.0.0 --port 4200 --configuration=fr --poll 2000
 ```
 
+The app must be looked at **http://localhost:4200/**.
+
 But note that for persistently-built frontend files, you must run:
 
 ```bash