diff --git a/tox.ini b/tox.ini
index 598a22b..b9232ce 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,17 +3,10 @@ envlist = docs
 skipsdist = True
 
 [testenv]
-basepython =
-    docs: python2.7
+deps = -r{toxinidir}/test-requirements.txt
 
-envdir =
-    docs: {toxworkdir}/2.7
+[testenv:venv]
+commands = {posargs}
 
-changedir =
-    docs: {toxinidir}/doc/
-
-deps =
-    -r{toxinidir}/requirements.txt
-
-commands =
-    docs: sphinx-build -W -b html . {toxinidir}/doc/build/html
+[docs]
+commands = python setup.py build_sphinx