faq.md

@@ -143,9 +143,13 @@ sudo gitlab-runner status # should return "service is running"
 ```
 
 #### Installation example on a macOS slave from ci.inria.fr ("ci" user account)
+
+**[Limitations on macOS](https://docs.gitlab.com/runner/install/osx.html#limitations-on-macos)** : The service needs to be installed from a Terminal window logged in as your current user (i.e., "ci" user account).
+
 ```
 sudo curl --output /usr/local/bin/gitlab-runner https://gitlab-runner-downloads.s3.amazonaws.com/latest/binaries/gitlab-runner-darwin-amd64
 sudo chmod +x /usr/local/bin/gitlab-runner
+# Run the following commands as the "ci" user
 gitlab-runner install --working-directory /builds
 gitlab-runner start
 gitlab-runner status # should return "service is running"