diff --git a/setup.cfg b/setup.cfg
index 7c592fb..f286a08 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -8,6 +8,7 @@ license = Apache License, Version 2.0
 license_file = LICENSE
 description = Mopidy extension for GPIO input on a Raspberry Pi
 long_description = file: README.rst
+long_description_content_type = text/x-rst
 classifiers =
     Environment :: No Input/Output (Daemon)
     Intended Audience :: End Users/Desktop