diff --git a/python/tox.ini b/python/tox.ini
index da618536..f2c8c474 100644
--- a/python/tox.ini
+++ b/python/tox.ini
@@ -36,7 +36,7 @@ deps =
 
 changedir = doc
 commands =
-    sphinx-build -b html . _build
+    sphinx-build -b html . _build/html
 
 
 [pytest]