exclude indentation error
diff --git a/tox.ini b/tox.ini
index 23d96e4..87b57e9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,5 +5,9 @@
 deps = flake8
        pandas
 
+[flake8]
+ignore = E111
+
+
 commands = flake8 --ignore=E501 --filename=*.py --exclude=doc,setup.py,*/tests/*
            python -m unittest discover --pattern=*.py tests