diff --git a/setup.cfg b/setup.cfg
index 30c63a5..f079e61 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -8,7 +8,7 @@ url = https://github.com/pupil-labs/surface-tracker
 author = Pupil Labs GmbH
 author_email = pypi@pupil-labs.com
 license = LGPL-3.0
-license_file = LICENSE
+license_files = LICENSE
 classifiers =
     Development Status :: 5 - Production/Stable
     Intended Audience :: Developers