diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 15dfae99..57ff5740 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -124,6 +124,7 @@ You can build the docs e.g. produce html, using `make docs`. At some point in th
 Front-end tests are found in the `tests/frontend/` folder in the repository. Run them by pointing your browser to `<yourdomainhere>/tests/frontend`.
 
 Back-end tests can be run from the `src` directory, via `npm test`.
+You can use `npm test -- --inspect-brk` and navigate to `edge://inspect` or `chrome://inspect` to debug the tests.
 
 ## Things you can help with
 Etherpad is much more than software.  So if you aren't a developer then worry not, there is still a LOT you can do!  A big part of what we do is community engagement.  You can help in the following ways