diff --git a/tox.ini b/tox.ini
index 07644b3d..5d6e861f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 [tox]
-minversion = 2.0
+minversion = 1.6
 skipsdist = True
-envlist = py27, py34, docs, pep8, {py27,py34}-coverage
+envlist = py27, py34, docs, pep8, py27-coverage, py34-coverage
 
 [tox:jenkins]
 downloadcache = ~/cache/pip