diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index b174d9b..56767c2 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -318,6 +318,7 @@
 			if not for_validate and not self.customer:
 				self.customer = pos.customer
 
+			self.ignore_pricing_rule = pos.ignore_pricing_rule
 			if pos.get('account_for_change_amount'):
 				self.account_for_change_amount = pos.get('account_for_change_amount')