diff --git a/setup.cfg b/setup.cfg
index 8501a419f..a8b0cd311 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -94,3 +94,4 @@ output_file = senlin/locale/senlin.pot
 all_files = 1
 build-dir = doc/build
 source-dir = doc/source
+warning-is-error = 1