diff --git a/patches/january_2013/rebuild_tree.py b/patches/january_2013/rebuild_tree.py
new file mode 100644
index 00000000000..75520902583
--- /dev/null
+++ b/patches/january_2013/rebuild_tree.py
@@ -0,0 +1,8 @@
+from __future__ import unicode_literals
+def execute():
+	from webnotes.utils.nestedset import rebuild_tree
+
+	rebuild_tree("Item Group", "parent_item_group")
+	rebuild_tree("Customer Group", "parent_customer_group")
+	rebuild_tree("Territory", "parent_territory")
+	rebuild_tree("Sales Person", "parent_sales_person")
\ No newline at end of file