diff --git a/tox.ini b/tox.ini
index 043e5210ddda3251248510562466dbaf62b10c05..592c660c5bbbf5805a3ecbb3e60c41f597182a55 100644
--- a/tox.ini
+++ b/tox.ini
@@ -17,6 +17,6 @@ max-line-length=100
 [pytest]
 testpaths = unittests
 xfail_strict = True
-#addopts = -x -vv --cov=caosdb
+addopts = -x -vv --cov=caosdb
 pythonpath = src