diff --git a/setup.py b/setup.py
index c8eb956..6733deb 100755
--- a/setup.py
+++ b/setup.py
@@ -27,7 +27,7 @@ it requires few software dependances and is pre-configured to work
 out-of-the-box.
 
 The Radicale Project runs on most of the UNIX-like platforms (Linux, BSD,
-MacOS X) and Windows.  It is known to work with Evolution, Lightning, iPhone
+MacOS X) and Windows.  It is known to work with Evolution, Lightning, iPhone
 and Android clients. It is free and open-source software, released under GPL
 version 3.