diff --git a/purchase_request/wizard/purchase_request_line_make_purchase_order.py b/purchase_request/wizard/purchase_request_line_make_purchase_order.py
index 8386e264c4f..e1812163cac 100644
--- a/purchase_request/wizard/purchase_request_line_make_purchase_order.py
+++ b/purchase_request/wizard/purchase_request_line_make_purchase_order.py
@@ -325,7 +325,7 @@ class PurchaseRequestLineMakePurchaseOrderItem(models.TransientModel):
         string="Wizard",
         required=True,
         ondelete="cascade",
-        readonly=True,
+        readonly=False,
     )
     line_id = fields.Many2one(
         comodel_name="purchase.request.line", string="Purchase Request Line"