--- a/mercurial/hgweb/hgweb_mod.py
+++ b/mercurial/hgweb/hgweb_mod.py
@@ -716,7 +716,7 @@ class hgweb(object):
# strip leading /
pi = pi[1:]
if pi:
- root = root[:root.rfind(root, pi)]
+ root = root[:root.rfind(pi)]
if req.env.has_key('REPO_NAME'):
rn = req.env['REPO_NAME'] + '/'
root += rn