diff --git a/models/export_journal_type.py b/models/export_journal_type.py
index 3ef2badda1fd67d5376061c03690cf66e8b9642c..e03d03b5f7181c58128db5d2c26a7306a3d3d554 100755
--- a/models/export_journal_type.py
+++ b/models/export_journal_type.py
@@ -15,7 +15,8 @@ class ExportJournalType(models.Model):
     fields_ids = fields.One2many(
         comodel_name='export.journal.field',
         inverse_name='export_id',
-        string="Champs"
+        string="Champs",
+        copy=True
     )
     is_header = fields.Boolean('Header', default=True)
     company_id = fields.Many2one(