diff --git a/setup.cfg b/setup.cfg
index dfd3346..594e216 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -31,9 +31,7 @@ packages =
 all_files = 1
 build-dir = doc/build
 source-dir = doc/source
+warning-is-error = 1
 
 [wheel]
 universal = 1
-
-[pbr]
-warnerrors = True