diff --git a/tox.ini b/tox.ini
index baea872fe..ea1e303d7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27, pypy, py34
+envlist = py27, pypy, py34, style
 
 [testenv]
 deps =