diff --git a/tox.ini b/tox.ini
index ed4170764..370af28f5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27
+envlist = py27,py34
 
 [testenv]
 changedir=test_project