diff --git a/__init__.py b/__init__.py
index befeb0b7979c03abd50115e47988b6cd5bf66f59..957992f377d7ce8942a87238397684babc5eb305 100644
--- a/__init__.py
+++ b/__init__.py
@@ -1,2 +1,4 @@
 # Copyright 2021 Le Filament (<http://www.le-filament.com>)
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from . import models
diff --git a/models/__init__.py b/models/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..9fd9c29e8d9cb589853d8f5070883c0be2088a41
--- /dev/null
+++ b/models/__init__.py
@@ -0,0 +1,4 @@
+# Copyright 2021 Le Filament (<http://www.le-filament.com>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from . import membership_line
diff --git a/models/membership_line.py b/models/membership_line.py
new file mode 100644
index 0000000000000000000000000000000000000000..9030c449d11a5b5bd0f0823c5099c336c9c3f29d
--- /dev/null
+++ b/models/membership_line.py
@@ -0,0 +1,10 @@
+# Copyright 2021 Le Filament (<http://www.le-filament.com>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from odoo import models, fields
+
+
+class MembershipLine(models.Model):
+    _inherit = 'membership.membership_line'
+
+    state = fields.Selection(readonly=False,)