diff --git a/erpnext/support/doctype/maintenance_schedule/maintenance_schedule.js b/erpnext/support/doctype/maintenance_schedule/maintenance_schedule.js
index 98590dd6af..7783b1b9f2 100644
--- a/erpnext/support/doctype/maintenance_schedule/maintenance_schedule.js
+++ b/erpnext/support/doctype/maintenance_schedule/maintenance_schedule.js
@@ -8,8 +8,9 @@ frappe.ui.form.on_change("Maintenance Schedule", "customer", function(frm) {
 frappe.ui.form.on_change("Maintenance Schedule", "customer_address", function(){
 	erpnext.utils.get_address_display(cur_frm, 'customer_address', 'address_display');
 });
-frappe.ui.form.on_change("Maintenance Schedule", "contact_person",
-	erpnext.utils.get_contact_details);
+frappe.ui.form.on_change("Maintenance Schedule", "contact_person", function(){
+  erpnext.utils.get_contact_details(cur_frm);	
+});
 
 // TODO commonify this code
 erpnext.support.MaintenanceSchedule = frappe.ui.form.Controller.extend({