diff --git a/setup.cfg b/setup.cfg
index 88cc9bb..e6abc7d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -87,6 +87,7 @@ openstack.rating.v1 =
 source-dir = doc/source
 build-dir = doc/build
 all_files = 1
+warning-is-error = 1
 
 [upload_sphinx]
 upload-dir = doc/build/html