diff --git a/setup.cfg b/setup.cfg
index f6ab266215..fb3593571c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -12,6 +12,7 @@ combine_as_imports = true
 default_section = THIRDPARTY
 include_trailing_comma = true
 known_first_party = django
+line_length = 79
 multi_line_output = 5
 not_skip = __init__.py