URL cache-busting parameters with RequireJS?

I'm using RequireJS (the jQuery version) and I want to append GET parameters to my scripts to prevent unwanted caching.

I'm using the urlArgs parameter, as suggested in the docs. This is my app-build.js file:

({
  appDir: "../",
  baseUrl: "scripts/",
  urlArgs: "cache=v2",
  ...

Then I build the project as follows:

$ node ../../r.js -o app.build.js

The output in app-build directory now contains both require-jquery.js, which is the same file as previously, and require-jquery.js?cache=v2, which is blank.

The index.html file doesn't seem to have any references to cache=v2. And when I load the page in a browser, I don't see any cache=v2 parameters appended to any of the scripts.

Am I doing something wrong?