diff --git a/README_SETUP.md b/README_SETUP.md
index 894777aeccb64ceb0fe840ba5f16f0cc540b2996..bd3d1e1edc2ba34181e288129433b07e1d25a9f5 100644
--- a/README_SETUP.md
+++ b/README_SETUP.md
@@ -32,7 +32,9 @@ Optional h5-crawler:
 - `pip install .[h5-crawler] --user`
 
 ## Run Unit Tests
-`tox`
+
+- All tests: `tox`
+- One specific test: `tox -- -k expression`
 
 ## Run Integration Tests Locally