diff --git a/addons/event/models/event_mail.py b/addons/event/models/event_mail.py
index 9d9df8faf06..448101636be 100644
--- a/addons/event/models/event_mail.py
+++ b/addons/event/models/event_mail.py
@@ -85,9 +85,9 @@ class EventMailScheduler(models.Model):
     scheduled_date = fields.Datetime('Scheduled Sent Mail', compute='_compute_scheduled_date', store=True)
     mail_registration_ids = fields.One2many('event.mail.registration', 'scheduler_id')
     mail_sent = fields.Boolean('Mail Sent on Event', copy=False)
-    done = fields.Boolean('Sent', compute='_compute_done', store=True)
+    done = fields.Boolean('Sent', compute='_compute_done', store=True, copy=False)
 
-    @api.depends('mail_sent', 'interval_type', 'event_id.registration_ids', 'mail_registration_ids')
+    @api.depends('mail_sent', 'interval_type', 'event_id.registration_ids', 'mail_registration_ids.mail_sent')
     def _compute_done(self):
         for mail in self:
             if mail.interval_type in ['before_event', 'after_event']:
diff --git a/addons/event/tests/test_event_mail_schedule.py b/addons/event/tests/test_event_mail_schedule.py
index 896a5873205..4f913309fb9 100644
--- a/addons/event/tests/test_event_mail_schedule.py
+++ b/addons/event/tests/test_event_mail_schedule.py
@@ -133,8 +133,7 @@ class TestMailSchedule(TestEventCommon, MockEmail):
         # verify that subscription scheduler was auto-executed after each registration
         self.assertEqual(len(after_sub_scheduler_2.mail_registration_ids), 2, 'event: should have 2 scheduled communication (1 / registration)')
         self.assertTrue(all(mail_reg.mail_sent for mail_reg in after_sub_scheduler_2.mail_registration_ids))
-        # FIXME: field not updated
-        # self.assertTrue(after_sub_scheduler_2.done, 'event: all subscription mails should have been sent')
+        self.assertTrue(after_sub_scheduler_2.done, 'event: all subscription mails should have been sent')
 
         # check emails effectively sent
         self.assertEqual(len(self._new_mails), 2, 'event: should have 2 scheduled emails (1 / registration)')