1 files changed, 1 insertions, 0 deletions

diff --git a/setup.cfg b/setup.cfg
index 1c4ee3d..fde2617 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -99,6 +99,7 @@ universal = 1
 source-dir = doc/source
 build-dir = doc/build
 all_files = 1
+warning-is-error = 1
 
 [upload_sphinx]
 upload-dir = doc/build/html