diff --git a/setup.cfg b/setup.cfg
index 33fc0db3b8..8115222b94 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -2,6 +2,7 @@
 name = pypeit
 description = PypeIt Spectroscopic Reduction
 long_description = file: README.md
+long_description_content_type = text/markdown
 author = PypeIt Collaboration
 author_email = pypeit@ucolick.org
 license = BSD-3