diff --git a/setup.cfg b/setup.cfg
index 5bde4372f5..24d8fcd239 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -2,7 +2,7 @@
 universal = 1
 
 [metadata]
-description-file = README.md
+description_file = README.md
 
 [flake8]
 exclude = ./twilio/rest,./twilio/twiml,./tests/integration