1 files changed, 1 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index ad9d6540..c2b434e4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -64,7 +64,7 @@ commands =
     make cmd_help
     python doc/check_copied_from.py doc/*.rst
     doc8 -q --ignore-path 'doc/_*' doc CHANGES.rst README.rst
-    sphinx-build -b html -aqE doc doc/_build/html
+    sphinx-build -b html -aEnqW doc doc/_build/html
     rst2html.py --strict README.rst doc/_build/trash
     - sphinx-build -b html -b linkcheck -aEnq doc doc/_build/html
     - sphinx-build -b html -b linkcheck -aEnQW doc doc/_build/html