diff --git a/.gitignore b/.gitignore
index 0ee7ac0..8b2ca61 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@ _build/
 /ChangeLog
 /dist/
 /openstackdocstheme.egg-info/
+.DS_Store
 *.pyc
 doc/build
 doc/source/BBresult
diff --git a/tox.ini b/tox.ini
index 57a983c..29fd15c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -29,6 +29,12 @@ commands =
   make -C doc/build/pdf
   sphinx-build -a -E -W -d api-ref/build/doctrees -b html api-ref/source api-ref/build/html
 
+[testenv:html]
+commands =
+  rm -rf doc/build api-ref/build
+  python setup.py build_sphinx
+  sphinx-build -a -E -W -d api-ref/build/doctrees -b html api-ref/source api-ref/build/html
+
 [testenv:releasenotes]
 commands =
   rm -rf releasenotes/build