diff --git a/setup.cfg b/setup.cfg
index d8ac9639b76..f6c614d2092 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -3,7 +3,7 @@ name = astropy
 author = The Astropy Developers
 author_email = astropy.team@gmail.com
 license = BSD-3-Clause
-license_file = LICENSE.rst
+license_files = LICENSE.rst
 url = http://astropy.org
 project_urls =
     Documentation = https://docs.astropy.org