diff --git a/setup.cfg b/setup.cfg
index a59082268e..5e18c4fd03 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -6,7 +6,8 @@ license = BSD License
 author = Georg Brandl
 author_email = georg@python.org
 description = Pygments is a syntax highlighting package written in Python.
-long_description = file:description.rst
+long_description = file: description.rst
+long_description_content_type = text/x-rst
 platforms = any
 keywords = syntax highlighting
 classifiers =