diff --git a/erpnext/maintenance/doctype/maintenance_visit/test_maintenance_visit.py b/erpnext/maintenance/doctype/maintenance_visit/test_maintenance_visit.py
index 6f86f70..7ebb4ba 100644
--- a/erpnext/maintenance/doctype/maintenance_visit/test_maintenance_visit.py
+++ b/erpnext/maintenance/doctype/maintenance_visit/test_maintenance_visit.py
@@ -4,6 +4,7 @@
 from __future__ import unicode_literals
 
 import unittest
+
 import frappe
 from frappe.utils.data import today