1 files changed, 1 insertions, 0 deletions

diff --git a/setup.cfg b/setup.cfg
index ae6ffb741..79f441d88 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -54,6 +54,7 @@ setup-hooks =
 all_files = 1
 build-dir = doc/build
 source-dir = doc
+warning-is-error = 1
 
 [build_releasenotes]
 all_files = 1