diff --git a/tox.ini b/tox.ini
index 5dc5d64..d51853c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,5 +23,6 @@ commands = sphinx-build -W -b html -d {envtmpdir}/doctrees .  {envtmpdir}/html
 [testenv:flake8]
 basepython = python
 # TODO add flake8-future
+# TODO add flake8-docstrings
 deps = flake8
 commands = flake8