diff -r bde7ef23340d -r c0f475ac997e mercurial/commands.py
--- a/mercurial/commands.py	Thu Oct 15 13:43:18 2015 -0700
+++ b/mercurial/commands.py	Wed Oct 14 17:00:34 2015 -0700
@@ -1244,7 +1244,7 @@
 
     bundletype = opts.get('type', 'bzip2').lower()
     try:
-        bcompression, cgversion = exchange.parsebundlespec(
+        bcompression, cgversion, params = exchange.parsebundlespec(
                 repo, bundletype, strict=False)
     except error.UnsupportedBundleSpecification as e:
         raise error.Abort(str(e),