diff --git a/erpnext/patches/v7_0/create_warehouse_nestedset.py b/erpnext/patches/v7_0/create_warehouse_nestedset.py
index af39cc8..8190fd7 100644
--- a/erpnext/patches/v7_0/create_warehouse_nestedset.py
+++ b/erpnext/patches/v7_0/create_warehouse_nestedset.py
@@ -1,3 +1,5 @@
+
+from __future__ import unicode_literals
 import frappe
 from frappe import _
 from frappe.utils import cint