diff --git a/setup.cfg b/setup.cfg
index 92f7bbb7b0..99201b9e34 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -702,6 +702,7 @@ autodoc_tree_excludes =
     openstackclient/tests/*
 
 [build_sphinx]
+builders = html,man
 all-files = 1
 warning-is-error = 1
 source-dir = doc/source