diff --git a/tox.ini b/tox.ini
index 73db598dc5f606e2f68cc11e65052bf2962d7014..88439ca5e63e6c272d36794aad7324d44ed927e4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,5 +15,5 @@ commands =
     coverage report
     coverage report --fail-under 80
     flake8
-#    sphinx-build -M html docs/source docs/build
+    sphinx-build -M html docs/source docs/build