--- a/mercurial/hgweb/webutil.py	Thu Jan 10 19:09:32 2013 +0100
+++ b/mercurial/hgweb/webutil.py	Mon Jan 14 16:55:48 2013 +0100
@@ -93,6 +93,9 @@
         return ({'before': lambda **map: (data(i) for i in navbefore),
                  'after':  lambda **map: (data(i) for i in navafter)},)
 
+class filerevnav(revnav):
+    pass
+
 def _siblings(siblings=[], hiderev=None):
     siblings = [s for s in siblings if s.node() != nullid]
     if len(siblings) == 1 and siblings[0].rev() == hiderev: