diff --git a/models/__init__.py b/models/__init__.py
index cd97890e146bdf3812b1242f1b92b98cd61f1e13..d3f915a5eb89f0b1bdf5151da8a6f12ba4f6a1d0 100644
--- a/models/__init__.py
+++ b/models/__init__.py
@@ -1,4 +1,4 @@
 # Copyright 2021 Le Filament (https://le-filament.com)
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html)
 
-from . import sale_intervention
+from . import sale_project
diff --git a/models/sale_intervention.py b/models/sale_project.py
similarity index 91%
rename from models/sale_intervention.py
rename to models/sale_project.py
index bdc2324de35be90d05150edbaf2a1e20169f2186..8493b1b6350f3e63a4030a65bc480fb8a955b371 100644
--- a/models/sale_intervention.py
+++ b/models/sale_project.py
@@ -4,10 +4,10 @@
 from odoo import models
 
 
-class SaleIntervention(models.Model):
-    _inherit = "sale.intervention"
+class SaleProject(models.Model):
+    _inherit = "sale.project"
 
-    def _update_order_lines(self):
+    def update_order_lines(self):
         """
         Rewrite function to use Taxes
         """
@@ -21,8 +21,8 @@ class SaleIntervention(models.Model):
         vat_furniture_categ = (
             self.env["product.category"].browse(furniture_categ_id.id).taxes_id
         )
-        lines = self.read_group(
-            (("project_id", "=", self.project_id.id),),
+        lines = self.env['sale.intervention'].read_group(
+            (("project_id", "=", self.id),),
             ("price", "intervention_length", "plant_qty"),
             "intervention_type_id",
             lazy=False,
@@ -51,7 +51,7 @@ class SaleIntervention(models.Model):
                     plant_price = plant_pricelist_item.fixed_price
                     existing_lines = self.sale_order_id.order_line.filtered(
                         lambda r: r.product_id.id == product_tmpl.product_variant_id.id
-                        and r.sale_project_id.id == self.project_id.id
+                        and r.sale_project_id.id == self.id
                     )
                     if existing_lines:
                         sol_plant = existing_lines.filtered(
@@ -87,10 +87,10 @@ class SaleIntervention(models.Model):
                             "order_id": self.sale_order_id.id,
                             "product_id": product_tmpl.product_variant_id.id,
                             "product_uom_qty": quantity,
-                            "sale_project_id": self.project_id.id,
+                            "sale_project_id": self.id,
                         }
                         sol_name = (
-                            "Projet " + self.project_id.name + " - " + product_tmpl.name
+                            "Projet " + self.name + " - " + product_tmpl.name
                         )
                         sols.append(
                             {
@@ -124,6 +124,6 @@ class SaleIntervention(models.Model):
                         )
                         for sol in sols:
                             self.env["sale.order.line"].create(sol)
-
             else:
-                super(SaleIntervention, self)._update_order_lines()
+                super(SaleProject, self).update_order_lines()
+        self.sale_order_id.clean_sale_order()