--- a/hgext/fetch.py
+++ b/hgext/fetch.py
@@ -8,7 +8,7 @@
 from mercurial.demandload import *
 from mercurial.i18n import gettext as _
 from mercurial.node import *
-demandload(globals(), 'mercurial:commands,hg,node')
+demandload(globals(), 'mercurial:commands,hg,node,util')
 
 def fetch(ui, repo, source='default', **opts):
     '''Pull changes from a remote repository, merge new changes if needed.