diff --git a/setup.cfg b/setup.cfg
index 3a5c3277037b9bf700f2240f5d5506659d001e6b..77517ea4d05df6ba24fdcdbbb5540f742c42b6fd 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [metadata]
-description-file = README.rst
+description_file = README.rst
 license_file = LICENSE.txt
 
 [aliases]