diff --git a/addons/sale_timesheet/models/project.py b/addons/sale_timesheet/models/project.py
index 77af2fcb7be..0e4f2a69cd0 100644
--- a/addons/sale_timesheet/models/project.py
+++ b/addons/sale_timesheet/models/project.py
@@ -61,13 +61,12 @@ class Project(models.Model):
     @api.depends('billable_type', 'allow_billable', 'sale_order_id', 'partner_id')
     def _compute_display_create_order(self):
         for project in self:
-            project._compute_billable_type()
             show = True
             if not project.partner_id or project.billable_type != 'no' or project.allow_billable or project.sale_order_id:
                 show = False
             project.display_create_order = show
 
-    @api.depends('sale_order_id', 'sale_line_id', 'sale_line_employee_ids')
+    @api.depends('sale_order_id.create_date', 'sale_line_id', 'sale_line_employee_ids')
     def _compute_billable_type(self):
         for project in self:
             billable_type = 'no'