--- /trac/Timeline.py.orig	2006-02-15 19:47:45.000000000 +0100
+++ /trac/Timeline.py	2006-08-10 19:50:11.000000000 +0200
@@ -21,4 +21,5 @@
 import re
 import time
+import md5
 
 from trac.core import *
@@ -163,4 +164,5 @@
                 event['title'] = rss_title(title)
                 event['message'] = str(message)
+                event['guid'] = md5.new(href + str(date)).hexdigest()
 
                 if author: