diff --git a/models/account_move_line.py b/models/account_move_line.py
index cd2ec05529aaa59ea55c68fe69cfcd968ad52afd..5b93be9134c35efc131a58549977c6d543a222da 100644
--- a/models/account_move_line.py
+++ b/models/account_move_line.py
@@ -7,4 +7,4 @@ from odoo import fields, models
 class AccountMoveLine(models.Model):
     _inherit = "account.move.line"
 
-    date_export = fields.Datetime("Date export")
+    date_export = fields.Datetime("Date export", copy=False)