diff --git a/setup.py b/setup.py
index 2e4d978a5..3841a1d4e 100644
--- a/setup.py
+++ b/setup.py
@@ -309,6 +309,7 @@ def get_basesources(name, osname):
 setup (name = 'psychtoolbox',
        version = version,
        description = 'Pieces of Psychtoolbox-3 ported to CPython.',
+       long_description = 'Pieces of Psychtoolbox-3 ported to CPython.',
        author = 'Mario Kleiner',
        author_email = 'mario.kleiner.de@gmail.com',
        url = 'http://psychtoolbox.org',