diff -r 9966c95b8c4f -r 1c1e1232abdc mercurial/hgweb/webcommands.py
--- a/mercurial/hgweb/webcommands.py	Sun Mar 13 15:53:38 2011 +0100
+++ b/mercurial/hgweb/webcommands.py	Sat Apr 23 15:04:15 2011 +0200
@@ -755,7 +755,7 @@
     if rev < web.maxshortchanges:
         startrev = uprev
 
-    dag = graphmod.revisions(web.repo, startrev, downrev)
+    dag = graphmod.dagwalker(web.repo, range(startrev, downrev - 1, -1))
     tree = list(graphmod.colored(dag))
     canvasheight = (len(tree) + 1) * bg_height - 27
     data = []