diff --git a/addons/sale/sale.py b/addons/sale/sale.py
index 1525429904a..bfaea2e26d0 100644
--- a/addons/sale/sale.py
+++ b/addons/sale/sale.py
@@ -55,7 +55,7 @@ class SaleOrder(models.Model):
             # Search for refunds as well
             refund_ids = self.env['account.invoice'].browse()
             if invoice_ids:
-                refund_ids = refund_ids.search([('type', '=', 'out_refund'), ('origin', 'in', invoice_ids.mapped('number'))])
+                refund_ids = refund_ids.search([('type', '=', 'out_refund'), ('origin', 'in', invoice_ids.mapped('number')), ('origin', '!=', False)])
 
             line_invoice_status = [line.invoice_status for line in order.order_line]