How to disable Job Composer?

I read this page in the documentation, from which I took away that I could disable the entire jobs entry in the menu by adding the following to /etc/ood/config/apps/dashboard/initializers/ood.rb

NavConfig.categories=[“Files”, “Clusters”, “Interactive Apps”]

What I actually got was a 404 style

We're sorry, but something went wrong.

The issue has been logged for investigation. Please try again later.

Ideally I’d just remove the Job Composer line instead of the whole menu item.