diff --git a/tox.ini b/tox.ini
index b6935c2fb..42cf42417 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 1.6
-envlist = py26,py27,py33,pep8
+envlist = py26,py27,py33,py34,pep8
 skipdist = True
 
 [testenv]