diff --git a/netbox/dcim/views.py b/netbox/dcim/views.py
index 90bd4629a..8269d3155 100644
--- a/netbox/dcim/views.py
+++ b/netbox/dcim/views.py
@@ -342,6 +342,11 @@ class SiteGroupView(GetRelatedModelsMixin, generic.ObjectView):
                     (Rack.objects.restrict(request.user, 'view').filter(site__group__in=groups), 'site_group_id'),
                     (Device.objects.restrict(request.user, 'view').filter(site__group__in=groups), 'site_group_id'),
                     (VLAN.objects.restrict(request.user, 'view').filter(site__group__in=groups), 'site_group_id'),
+                    (
+                        ASN.objects.restrict(request.user, 'view').filter(
+                            sites__group__in=groups
+                        ).distinct(),
+                        'site_group_id'),
                     (
                         VirtualMachine.objects.restrict(request.user, 'view').filter(
                             site__group__in=groups),