diff --git a/l10n_fr_tax_return/models/account_tax_return_year.py b/l10n_fr_tax_return/models/account_tax_return_year.py
index 55762e8..98b0c56 100644
--- a/l10n_fr_tax_return/models/account_tax_return_year.py
+++ b/l10n_fr_tax_return/models/account_tax_return_year.py
@@ -15,6 +15,7 @@ class AccountTaxReturnYear(models.Model):
     )
     line_type = fields.Selection(
         related="line_id.line_type",
+        store=True,
     )
     amount = fields.Integer(
         string="Amount",