diff --git a/apps/establishment/transfer_data.py b/apps/establishment/transfer_data.py
index db7e52b5..94a825f4 100644
--- a/apps/establishment/transfer_data.py
+++ b/apps/establishment/transfer_data.py
@@ -17,7 +17,7 @@ def transfer_establishment():
     old_establishments = Establishments.objects.exclude(
         Q(type='Wineyard') |
         Q(location__timezone__isnull=True),
-        id__in=Establishment.objects.all().values_list('old_id', flat=True)
+        id__in=list(Establishment.objects.all().values_list('old_id', flat=True))
     ).prefetch_related(
         'establishmentinfos_set',
         'schedules_set',