diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
index 697611d..c469a02 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
@@ -334,7 +334,7 @@
 
 			if update_outstanding == "No":
 				update_outstanding_amt(self.credit_to, "Supplier", self.supplier,
-					self.doctype, self.return_against if cint(self.is_return and self.return_against) else self.name)
+					self.doctype, self.return_against if cint(self.is_return) and self.return_against else self.name)
 
 			if repost_future_gle and cint(self.update_stock) and self.auto_accounting_for_stock:
 				from erpnext.controllers.stock_controller import update_gl_entries_after