Set `get_contact_details` and `get_address_display` to the right standard!
diff --git a/erpnext/support/doctype/maintenance_visit/maintenance_visit.js b/erpnext/support/doctype/maintenance_visit/maintenance_visit.js
index a267eb3..f9d5e8d 100644
--- a/erpnext/support/doctype/maintenance_visit/maintenance_visit.js
+++ b/erpnext/support/doctype/maintenance_visit/maintenance_visit.js
@@ -6,10 +6,12 @@
 
 frappe.ui.form.on_change("Maintenance Visit", "customer", function(frm) {
 	erpnext.utils.get_party_details(frm) });
-frappe.ui.form.on_change("Maintenance Visit", "customer_address",
-	erpnext.utils.get_address_display);
-frappe.ui.form.on_change("Maintenance Visit", "contact_person",
-	erpnext.utils.get_contact_details);
+frappe.ui.form.on_change("Maintenance Visit", "customer_address", function(frm){
+	erpnext.utils.get_address_display(frm, 'customer_address', 'address_display')
+});
+frappe.ui.form.on_change("Maintenance Visit", "contact_person", function(frm){
+	erpnext.utils.get_contact_details(frm)
+});
 
 // TODO commonify this code
 erpnext.support.MaintenanceVisit = frappe.ui.form.Controller.extend({
@@ -81,4 +83,4 @@
 
 cur_frm.fields_dict.customer.get_query = function(doc,cdt,cdn) {
 	return {query: "erpnext.controllers.queries.customer_query" }
-}
\ No newline at end of file
+}