diff --git a/lemarche/tenders/migrations/0065_tender_limit_nb_siae_interested_and_more.py b/lemarche/tenders/migrations/0065_tender_limit_nb_siae_interested_and_more.py
index da8258104..5fefaebd9 100644
--- a/lemarche/tenders/migrations/0065_tender_limit_nb_siae_interested_and_more.py
+++ b/lemarche/tenders/migrations/0065_tender_limit_nb_siae_interested_and_more.py
@@ -43,6 +43,7 @@ class Migration(migrations.Migration):
             name="version",
             field=models.PositiveIntegerField(default=0, verbose_name="Version"),
         ),
+        # this is migration to manage the existants stock
         migrations.AlterField(
             model_name="tender",
             name="version",
diff --git a/lemarche/tenders/models.py b/lemarche/tenders/models.py
index 3e5d71be3..f03540a38 100644
--- a/lemarche/tenders/models.py
+++ b/lemarche/tenders/models.py
@@ -422,7 +422,7 @@ class Tender(models.Model):
     )
     validated_at = models.DateTimeField("Date de validation", blank=True, null=True)
     first_sent_at = models.DateTimeField("Date du premier envoi", blank=True, null=True)
-    last_sent_at = models.DateTimeField(blank=True, null=True, verbose_name="Date du dernier envoi")
+    last_sent_at = models.DateTimeField("Date du dernier envoi", blank=True, null=True)
     # admin
     notes = GenericRelation("notes.Note", related_query_name="tender")
     siae_transactioned = models.BooleanField(