diff -r 66bbbb96f5e0 -r 2a2db401a55b hgext/simple4server.py
--- a/hgext/simple4server.py	Mon Mar 10 16:27:21 2014 -0700
+++ b/hgext/simple4server.py	Mon Mar 10 16:52:46 2014 -0700
@@ -12,6 +12,7 @@
 mercurial.obsolete._enabled = True
 
 import struct
+from mercurial import util
 from mercurial import wireproto
 from mercurial import extensions
 from mercurial import obsolete