diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index 2405841..4c87da6 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -1612,7 +1612,9 @@ class Event(models.Model):
         for e in to_import:
             if e.is_event_long_duration():
                 e.status = Event.STATUS.DRAFT
-                e.set_message(_("The duration of the event is a little too long for direct publication. Moderators can choose to publish it or not."))
+                e.set_message(
+                    Message(subject=_('Import'), name=_('import process'), message=_("The duration of the event is a little too long for direct publication. Moderators can choose to publish it or not."))
+                )
 
         # then import all the new events
         imported = Event.objects.bulk_create(to_import)
@@ -1621,7 +1623,8 @@ class Event(models.Model):
             if ti.has_pending_organisers() and ti.pending_organisers is not None:
                 i.organisers.set(ti.pending_organisers)
             if ti.has_message():
-                msg = Message(subject=_('Import'), related_event=i, name=_('import process'), message=ti.get_message())
+                msg = ti.get_message()
+                msg.related_event = i
                 msg.save()
 
         nb_updated = Event.objects.bulk_update(