diff --git a/addons/purchase/purchase.py b/addons/purchase/purchase.py
index 560b8eaece1..63fad3f2921 100644
--- a/addons/purchase/purchase.py
+++ b/addons/purchase/purchase.py
@@ -337,7 +337,8 @@ class PurchaseOrder(models.Model):
                 res = order._prepare_picking()
                 picking = self.env['stock.picking'].create(res)
                 moves = order.order_line.filtered(lambda r: r.product_id.type in ['product', 'consu'])._create_stock_moves(picking)
-                moves.action_confirm()
+                move_ids = moves.action_confirm()
+                moves = self.env['stock.move'].browse(move_ids)
                 moves.force_assign()
         return True