diff --git a/jikimo_purchase_request/models/stock_picking.py b/jikimo_purchase_request/models/stock_picking.py
index abac1b1b..97b294f3 100644
--- a/jikimo_purchase_request/models/stock_picking.py
+++ b/jikimo_purchase_request/models/stock_picking.py
@@ -42,6 +42,6 @@ class StockPicking(models.Model):
             purchase_request_lines = self.move_ids.move_orig_ids.purchase_line_id.purchase_request_lines
             if purchase_request_lines:
                purchase_request_lines.move_dest_ids = [
-                   (4, x.id) for x in backorder_ids.move_ids if x.product_id.id == purchase_request_lines.product_id.id
+                   (4, x.id) for x in backorder_ids.move_ids if x.product_id.id in purchase_request_lines.mapped('product_id.id')
                 ]
         return res
\ No newline at end of file