diff --git a/addons/document/nodes.py b/addons/document/nodes.py
index 4ed36a45024..7c258ca0355 100644
--- a/addons/document/nodes.py
+++ b/addons/document/nodes.py
@@ -209,12 +209,14 @@ class node_class(object):
     def get_dav_eprop(self, cr, ns, prop):
         return None
 
-    def move_to(self, cr, fil_obj, ndir_obj, in_write=False):
+    def move_to(self, cr, fil_obj, ndir_obj, new_name=False, in_write=False):
         """ Move this node to a new parent directory.
-        fil_obj, can be None, is the browse object for the file, if already
-            available.
-        ndir_obj must be the browse object to the new doc.directory location,
-            where this node should be moved to.
+        @param fil_obj, can be None, is the browse object for the file, 
+            if already available.
+        @param ndir_obj must be the browse object to the new doc.directory 
+            location, where this node should be moved to.
+        @param new_name a name to rename this node to. If omitted, the old
+            name is preserved
         in_write: When called by write(), we shouldn't attempt to write the
             object, but instead return the dict of vals (avoid re-entrance).
             If false, we should write all data to the object, here, as if the