diff --git a/tox.ini b/tox.ini
index 3d2540a98e..5e217ff4ef 100644
--- a/tox.ini
+++ b/tox.ini
@@ -28,6 +28,7 @@ commands = python setup.py build_sphinx
 commands =
     oslo-config-generator --output-file etc/magnum/magnum.conf.sample \
     --namespace magnum \
+    --namespace oslo.concurrency \
     --namespace oslo.db \
     --namespace oslo.messaging \
     --namespace keystonemiddleware.auth_token