diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 26f24b7..0f0f341 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -33,6 +33,7 @@
 3. Install the dependencies with `npm i`
 4. Install Angular with `npm i -g @angular/cli`
 5. Turn off production mode if you have not already (see above in backend).
+6. Also make sure to disable strict CORS checking for testing: `sudo su -c 'echo "cors_allow_origin = \"*\"" >> /etc/kibicara.conf'`
 6. Start the backend in a different terminal
 7. To serve and open the application, run `ng s -o`. The application will open
    under [http://127.0.0.1:4200](http://127.0.0.1:4200).