diff --git a/addons/hr_timesheet/models/project.py b/addons/hr_timesheet/models/project.py
index 2afc6d6f154..edab491a5d1 100644
--- a/addons/hr_timesheet/models/project.py
+++ b/addons/hr_timesheet/models/project.py
@@ -280,7 +280,7 @@ class Task(models.Model):
     def _compute_effective_hours(self):
         if not any(self._ids):
             for task in self:
-                task.effective_hours = round(sum(task.timesheet_ids.mapped('unit_amount')))
+                task.effective_hours = round(sum(task.timesheet_ids.mapped('unit_amount')), 2)
             return
         timesheet_read_group = self.env['account.analytic.line'].read_group([('task_id', 'in', self.ids)], ['unit_amount', 'task_id'], ['task_id'])
         timesheets_per_task = {res['task_id'][0]: res['unit_amount'] for res in timesheet_read_group}