diff --git a/setup.cfg b/setup.cfg
index c9ebdc15da68dc6f25124d7c0665bd8a483f1274..c9180cb1b8588dd26e3cadf029313fd502b418b3 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -9,7 +9,8 @@ author = LasNQ – Uni Hamburg
 author-email = christian.darsow@physik.uni-hamburg.de
 license = GPL v3
 # url = http://
-long-description = file: README.md
+long_description = file: README.md
+long_description_content_type = text/markdown
 # Change if running only on Windows, Mac or Linux (comma-separated)
 platforms = any
 # Add here all kinds of additional classifiers as defined under