diff --git a/addons/sale_timesheet/models/sale_order.py b/addons/sale_timesheet/models/sale_order.py
index 75e7953e903..c76798bce10 100644
--- a/addons/sale_timesheet/models/sale_order.py
+++ b/addons/sale_timesheet/models/sale_order.py
@@ -51,7 +51,10 @@ class SaleOrder(models.Model):
     def _action_confirm(self):
         """ On SO confirmation, some lines should generate a task or a project. """
         result = super(SaleOrder, self)._action_confirm()
-        self.mapped('order_line').sudo().with_context(default_company_id=self.company_id.id)._timesheet_service_generation()
+        self.mapped('order_line').sudo().with_context(
+            default_company_id=self.company_id.id,
+            force_company=self.company_id.id,
+        )._timesheet_service_generation()
         return result
 
     @api.multi