diff --git a/setup.cfg b/setup.cfg
index 3b13b60..7cfc4ce 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -35,3 +35,6 @@
 #                coverage http://pypi.python.org/pypi/coverage
 #                openstack-nose https://github.com/openstack-dev/openstack-nose
 verbosity=2
+
+[pbr]
+autodoc_tree_index_modules=true