diff --git a/setup.py b/setup.py
index 46155ac..f8ad7bb 100644
--- a/setup.py
+++ b/setup.py
@@ -14,6 +14,7 @@
     version=version,
     description="Static files for Plone",
     long_description=(open("README.rst").read() + "\n" + open("CHANGES.rst").read()),
+    long_description_content_type="text/x-rst",
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Framework :: Plone",