diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
index f334399..37d1ec6 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
@@ -628,9 +628,7 @@
 						"credit_in_account_currency": base_grand_total
 						if self.party_account_currency == self.company_currency
 						else grand_total,
-						"against_voucher": self.return_against
-						if cint(self.is_return) and self.return_against
-						else self.name,
+						"against_voucher": self.name,
 						"against_voucher_type": self.doctype,
 						"project": self.project,
 						"cost_center": self.cost_center,
diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index 0bc5aa2..d03afe3 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -1104,9 +1104,7 @@
 						"debit_in_account_currency": base_grand_total
 						if self.party_account_currency == self.company_currency
 						else grand_total,
-						"against_voucher": self.return_against
-						if cint(self.is_return) and self.return_against
-						else self.name,
+						"against_voucher": self.name,
 						"against_voucher_type": self.doctype,
 						"cost_center": self.cost_center,
 						"project": self.project,