diff --git a/tox.ini b/tox.ini
index b80bf3d1..3bc149d5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 1.6
-envlist = py26,py27,py33,pypy,pep8,functional
+envlist = py26,py27,py33,pypy,pep8,functional,docs
 skipsdist = True
 
 [testenv]
@@ -35,3 +35,6 @@ commands = python elastic_recheck/bot.py -f -n --noirc elasticRecheck.conf
 
 ignore = E123,E125,H803
 exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build
+
+[testenv:docs]
+commands = python setup.py build_sphinx