diff --git a/docs/TESTING.md b/docs/TESTING.md
index fd755365..5549853c 100644
--- a/docs/TESTING.md
+++ b/docs/TESTING.md
@@ -1,6 +1,6 @@
 # Testing
 
-The [Python interoperability tests](client/python_interop/) require Python 3
+The [Python interoperability tests](../client/python_interop/) require Python 3
 (available as `python` on the `$PATH`) and the [`python-tuf`
 package](https://github.com/theupdateframework/python-tuf) installed. To use the correct versions of the packages, it is recommended to use a [virtual environment](https://docs.python.org/3/library/venv.html#module-venv) and install the dependencies via: