diff --git a/tox.ini b/tox.ini
index 8a9f1525..cb31fe6a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -55,7 +55,7 @@ basepython = python3
 # https://bitbucket.org/ned/coveragepy/issues/519/
 setenv =
   {[testenv]setenv}
-  PYTHON=coverage run --source nova --parallel-mode
+  PYTHON=coverage run --source nova,nova_powervm --parallel-mode
 commands =
   {[testenv]commands}
   coverage erase