diff --git a/tests/README.md b/tests/README.md
index a43c60d6..3aeb046d 100644
--- a/tests/README.md
+++ b/tests/README.md
@@ -14,7 +14,7 @@ You'll need to adapt the `ADMIN_API_TOKEN` to the value you use in your `.env` f
 Alternatively, you can use docker-compose to run the tests:
 
 ```console
-$ docker-compose -f docker-compose.testcafe.yml up --exit-code-from testcafe
+$ PROJECT_DIR=$(pwd) docker-compose -f docker-compose.testcafe.yml up --exit-code-from testcafe
 ```
 
 Note: by default, tests are running in Chrome locally and in Chromium in the Docker image.