diff --git a/setup.cfg b/setup.cfg
index 2cd4d0c..ecd45f2 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -2,7 +2,7 @@
 universal=1
 
 [metadata]
-description-file = README.rst
+description_file = README.rst
 license_file = LICENSE
 
 [flake8]