diff --git a/tox.ini b/tox.ini
index 1f6d876..1316f6e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,3 +12,10 @@ commands = nosetests --nocapture --nologcapture
 deps =
     nose
     -rrequirements.txt
+
+[testenv:flake8]
+commands = flake8 {posargs}
+deps = flake8
+
+[flake8]
+exclude = .tox,.venv,build,dist,doc