diff --git a/setup.cfg b/setup.cfg
index 7308cecf..5196d55d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [metadata]
-license_file = LICENSE
+license_files = LICENSE
 name = twine
 author = Donald Stufft and individual contributors
 author_email = donald@stufft.io