diff --git a/tox.ini b/tox.ini
index ad0f420..1ff797d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,4 @@
 [tox]
-# Proton does not support Python3 yet: see Jira PROTON-490
-#envlist = py27,py33,pep8
 envlist = py27,pep8,py34
 
 [testenv]