diff --git a/tox.ini b/tox.ini
index 41e21b0d..fd608b3d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -50,7 +50,7 @@ commands =
 [testenv:cover]
 basepython = python3
 setenv =
-    PYTHON=coverage run --source $project --parallel-mode
+    PYTHON=coverage run --source oslo_cache --parallel-mode
 commands =
     stestr run '{posargs}'
     coverage combine