diff --git a/tox.ini b/tox.ini
index dfa023c2..24da7c73 100644
--- a/tox.ini
+++ b/tox.ini
@@ -41,3 +41,5 @@ commands =
 commands = flake8 --extend-ignore F401 {posargs:jedi}
 deps =
 extras = qa
+[pycodestyle]
+max-line-length=100