Note: Fixes for the online documentation of the current Stack release
(https://docs.haskellstack.org/en/stable/) should target the 'stable' branch,
not the 'master' branch.

Please include the following checklist in your pull request:

* [ ] Any changes that could be relevant to users have been recorded in ChangeLog.md.
* [ ] The documentation has been updated, if necessary

Please also shortly describe how you tested your change. Bonus points for added tests!
