diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index 6757e43b2c..931ff8c7ce 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -337,7 +337,7 @@ class SalesInvoice(SellingController):
 				msgprint(_("Item Code required at Row No {0}").format(d.idx), raise_exception=True)
 
 	def validate_warehouse(self):
-		for d in self.get('entries'):
+		for d in self.get('items'):
 			if not d.warehouse:
 				frappe.throw(_("Warehouse required at Row No {0}").format(d.idx))