diff --git a/setup.cfg b/setup.cfg
index e97d776..1657d4d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -53,6 +53,7 @@ paste.filter_factory =
 source-dir = doc/source
 build-dir = doc/build
 all_files = 1
+warning-is-error = 1
 
 [upload_sphinx]
 upload-dir = doc/build/html
@@ -71,8 +72,5 @@ keywords = _ gettext ngettext l_ lazy_gettext
 mapping_file = babel.cfg
 output_file = oslo_middleware/locale/oslo_middleware.pot
 
-[pbr]
-warnerrors = True
-
 [wheel]
 universal = 1