diff --git a/setup.cfg b/setup.cfg
index e6d3075..efabe0d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -36,6 +36,7 @@ oslo.config.opts =
     manilaclient.config = manilaclient.config:list_opts
 
 [build_sphinx]
+builders = html,man
 all_files = 1
 source-dir = doc/source
 build-dir = doc/build