diff --git a/kfet/views.py b/kfet/views.py
index 2fe284ad..8bca6462 100644
--- a/kfet/views.py
+++ b/kfet/views.py
@@ -1282,12 +1282,13 @@ def history_json(request):
 
     transfer_queryset_prefetch = Transfer.objects.select_related(
             'from_acc__trigramme', 'to_acc__trigramme',
+            'from_acc__id', 'to_acc__id',
             'canceled_by__trigramme')
 
     if accounts:
         transfer_queryset_prefetch = transfer_queryset_prefetch.filter(
-                    Q(from_acc__trigramme__in=accounts) |
-                    Q(to_acc__trigramme__in=accounts))
+                    Q(from_acc__id__in=accounts) |
+                    Q(to_acc__id__in=accounts))
 
     if not request.user.has_perm('kfet.is_team'):
         acc = request.user.profile.account_kfet