diff --git a/tox.ini b/tox.ini
index c9ec2bb1d..fd5bdefad 100644
--- a/tox.ini
+++ b/tox.ini
@@ -7,7 +7,7 @@
 twisted = 1
 
 [tox]
-envlist = {py27,pypy27,py36}{-coverage,}
+envlist = {py27,pypy27,py36}{-coverage,},codechecks
 minversion = 2.4
 
 [testenv]