diff -r 48fd1dfb99aa -r 7cc77030c557 hgext/rebase.py
--- a/hgext/rebase.py	Wed Jan 14 20:29:47 2015 -0800
+++ b/hgext/rebase.py	Thu Jan 15 23:17:12 2015 +0100
@@ -754,7 +754,7 @@
 def storestatus(repo, originalwd, target, state, collapse, keep, keepbranches,
                 external, activebookmark):
     'Store the current status to allow recovery'
-    f = repo.opener("rebasestate", "w")
+    f = repo.vfs("rebasestate", "w")
     f.write(repo[originalwd].hex() + '\n')
     f.write(repo[target].hex() + '\n')
     f.write(repo[external].hex() + '\n')
@@ -789,7 +789,7 @@
         external = nullrev
         activebookmark = None
         state = {}
-        f = repo.opener("rebasestate")
+        f = repo.vfs("rebasestate")
         for i, l in enumerate(f.read().splitlines()):
             if i == 0:
                 originalwd = repo[l].rev()