diff --git a/setup.cfg b/setup.cfg
index 47cdf0e..3580818 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -7,7 +7,7 @@ url = https://github.com/pupil-labs/pyglui
 author = Pupil Labs GmbH
 author_email = pypi@pupil-labs.com
 license = MIT
-license_file = LICENSE
+license_files = LICENSE
 classifiers =
     Development Status :: 5 - Production/Stable
     Intended Audience :: Developers