diff --git a/tox.ini b/tox.ini
index e00cc83..acb76fe 100644
--- a/tox.ini
+++ b/tox.ini
@@ -41,13 +41,14 @@
 
 [testenv:cover]
 setenv =
-    PYTHON=coverage run --source $project --parallel-mode
+    PYTHON=coverage run --source castellan --parallel-mode
 commands =
-    stestr run {posargs}
+    coverage erase
+    {[testenv]commands}
     coverage combine
     coverage html -d cover
     coverage xml -o cover/coverage.xml
-    coverage report
+    coverage report --show-missing
 
 [testenv:docs]
 # This environment is called from CI scripts to test and publish