diff -r 922fcfb02e77 -r d7abae94a7a0 mercurial/patch.py
--- a/mercurial/patch.py	Wed Nov 12 23:47:25 2014 -0800
+++ b/mercurial/patch.py	Thu Nov 13 00:08:44 2014 -0800
@@ -1573,6 +1573,7 @@
         git=get('git'),
         nodates=get('nodates'),
         nobinary=get('nobinary'),
+        noprefix=get('noprefix', forceplain=False),
         showfunc=get('show_function', 'showfunc'),
         ignorews=get('ignore_all_space', 'ignorews'),
         ignorewsamount=get('ignore_space_change', 'ignorewsamount'),