diff --git a/tox.ini b/tox.ini
index c83a789..c58cef7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -37,4 +37,4 @@ ignore = E203,E501,W503,E231,A003,D101,D102,D103,D104,D105,D107,A003,D100
 
 [testenv:docs]
 deps = sphinx
-commands = python setup.py build_sphinx
\ No newline at end of file
+commands = sphinx-build -b html doc/source doc/build/html