diff --git a/yuthon_will_task/models/yuthon_will_task.py b/yuthon_will_task/models/yuthon_will_task.py
index 309fa270d..aa0bd80a5 100644
--- a/yuthon_will_task/models/yuthon_will_task.py
+++ b/yuthon_will_task/models/yuthon_will_task.py
@@ -178,7 +178,7 @@ class YuthonWillTask(models.Model):
         now = datetime.now() - timedelta(hours=8)
         now_truncated = now.replace(second=0, microsecond=0)
         for task in self.env['yuthon.dates.task'].search([('task_state', '=', 'to_do')]):
-            will_id = task.yuthon_will_task_id.id
+            will_id = task.yuthon_will_task_id
             reminder_truncated = task.reminder_time.replace(second=0, microsecond=0)
             if reminder_truncated == now_truncated:
                 task.task_state = 'done'