diff --git a/certidude/api/bundle.py b/certidude/api/bundle.py
index 0249640..9cddd67 100644
--- a/certidude/api/bundle.py
+++ b/certidude/api/bundle.py
@@ -14,6 +14,7 @@ KEYWORDS = (
     (u"Ubuntu", u"ubuntu"),
     (u"Fedora", u"fedora"),
     (u"Linux", u"linux"),
+    (u"Macintosh", u"mac"),
 )
 
 class BundleResource(object):