Index: vcpx/bzr.py
===================================================================
--- vcpx/bzr.py	(revision 1027)
+++ vcpx/bzr.py	(revision 1033)
@@ -206,5 +206,5 @@
 
         self.log.info('Renaming "%s" to "%s"...', oldentry, newentry)
-        self._b.rename_one(oldentry, newentry)
+        self._b.working_tree().rename_one(oldentry, newentry)
 
     def _prepareTargetRepository(self):