diff --git a/hgext3rd/gitlookup.py b/hgext3rd/gitlookup.py
--- a/hgext3rd/gitlookup.py
+++ b/hgext3rd/gitlookup.py
@@ -106,7 +106,7 @@
 
     kwargs = {'bundlecaps': exchange.caps20to10(repo)}
     capsblob = bundle2.encodecaps(bundle2.getrepocaps(repo))
-    kwargs['bundlecaps'].add('bundle2=' + urllib.quote(capsblob))
+    kwargs['bundlecaps'].add('bundle2=' + util.urlreq.quote(capsblob))
     # this would ideally not be in the bundlecaps at all, but adding new kwargs
     # for wire transmissions is not possible as of Mercurial d19164a018a1
     kwargs['bundlecaps'].add('fb_gitmeta')