diff --git a/setup.cfg b/setup.cfg
index 0a148b4ce59..a62b967bb25 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -19,3 +19,6 @@ addopts =
 # DEV: The default is `test_*\.py` which will miss `test.py` files
 python_files = test*\.py
 asyncio_mode = auto
+
+[flake8]
+max-line-length = 120