diff --git a/tox.ini b/tox.ini
index 02364c40..84799bdf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -29,7 +29,7 @@ basepython =
 
 [testenv:apicheck]
 commands =
-    sphinx-build -W -b apicheck -d {envtmpdir}/doctrees docs docs/_build/apicheck
+    sphinx-build -b apicheck -d {envtmpdir}/doctrees docs docs/_build/apicheck
 
 [testenv:linkcheck]
 commands =