diff --git a/README.md b/README.md
index 47edc4e..60d5fe0 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@ If you are a developer:
 * go to `apps/` and clone your repository
 * go to `apps/side_menu` and run `npm install`
 
-Build javascripts using `npm run build` (or `npm run watch` to build them in real time).
+Build javascripts using `make npm-build` (or `make npm-watch` to build them in real time).
 
 Then commit and create a pull request.