diff --git a/tox.ini b/tox.ini
index 39efd7e..2e2707b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,3 +6,8 @@ envlist =
 deps =
 commands =
     python setup.py test -q
+    python setup.py flake8
+
+[flake8]
+select = E,F,W
+max_line_length = 79