diff --git a/erpnext/accounts/doctype/pos_invoice/pos_invoice.py b/erpnext/accounts/doctype/pos_invoice/pos_invoice.py
index f67cae3..7312248 100644
--- a/erpnext/accounts/doctype/pos_invoice/pos_invoice.py
+++ b/erpnext/accounts/doctype/pos_invoice/pos_invoice.py
@@ -299,6 +299,9 @@
 				customer_price_list, customer_group = frappe.db.get_value("Customer", self.customer, ['default_price_list', 'customer_group'])
 				customer_group_price_list = frappe.db.get_value("Customer Group", customer_group, 'default_price_list')
 				selling_price_list = customer_price_list or customer_group_price_list or profile.get('selling_price_list')
+				if customer_currency != profile.get('currency'):
+					self.set('currency', customer_currency)
+
 			else:
 				selling_price_list = profile.get('selling_price_list')