diff --git a/VERSION b/VERSION
index ca2214d7..30a4e4c4 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-Version 2.00.0 (2012-05-26 17:53:25) dev
+Version 2.00.0 (2012-05-26 20:09:28) dev
diff --git a/gluon/serializers.py b/gluon/serializers.py
index b071dd1e..44703835 100644
--- a/gluon/serializers.py
+++ b/gluon/serializers.py
@@ -68,7 +68,7 @@ def ics(events, title=None, link=None, timeshift=0):
     import datetime
     title = title or '(unkown)'
     if link and not callable(link):
-        link = lambda item,prefix=link: prefix.replace('[id]',item['id'])
+        link = lambda item,prefix=link: prefix.replace('[id]',str(item['id']))
     s = 'BEGIN:VCALENDAR'
     s += '\nVERSION:2.0'
     s += '\nX-WR-CALNAME:%s' % title