diff --git a/erpnext/accounts/custom/address.py b/erpnext/accounts/custom/address.py
index c417a49..834227b 100644
--- a/erpnext/accounts/custom/address.py
+++ b/erpnext/accounts/custom/address.py
@@ -1,7 +1,7 @@
 import frappe
 from frappe import _
 from frappe.contacts.doctype.address.address import Address
-from frappe.contacts.doctype.address.address import get_address_templates
+from frappe.contacts.doctype.address.address import get_address_templates, get_address_display
 
 class ERPNextAddress(Address):
 	def validate(self):
@@ -22,6 +22,16 @@
 			frappe.throw(_("Address needs to be linked to a Company. Please add a row for Company in the Links table."),
 				title=_("Company Not Linked"))
 
+	def on_update(self):
+		"""
+		After Address is updated, update the related 'Primary Address' on Customer.
+		"""
+		address_display = get_address_display(self.as_dict())
+		filters = { "customer_primary_address": self.name }
+		customers = frappe.db.get_all("Customer", filters=filters, as_list=True)
+		for customer_name in customers:
+			frappe.db.set_value("Customer", customer_name[0], "primary_address", address_display)
+			
 @frappe.whitelist()
 def get_shipping_address(company, address = None):
 	filters = [