diff --git a/tox.ini b/tox.ini
index 0b60dba..e8920e2 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py34,py35,pep8
+envlist = py27,py34,py35,pycodestyle
 
 [testenv]
 commands=python setup.py test
@@ -8,6 +8,6 @@ deps=
   simplejson
   mock
 
-[testenv:pep8]
-deps = pep8
-commands = pep8 --repeat --ignore=E501 --show-source mackerel tests setup.py
+[testenv:pycodestyle]
+deps = pycodestyle
+commands = pycodestyle --repeat --ignore=E501 --show-source mackerel tests setup.py