diff --git a/tox.ini b/tox.ini
index 775241b8..ff16929e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -26,4 +26,4 @@ deps =
     sphinx_rtd_theme
 changedir = docs
 commands =
-    sphinx-build -W -b html -d {envtmpdir}/doctrees . {envtmpdir}/html
+    sphinx-build -W -b html -d {envtmpdir}/doctrees . _build/html