diff --git a/netbox/vapor/filters.py b/netbox/vapor/filters.py
index 559b28438..d604fcddf 100644
--- a/netbox/vapor/filters.py
+++ b/netbox/vapor/filters.py
@@ -103,7 +103,7 @@ class InterfaceFilter(django_filters.FilterSet):
     )
 
     customer = django_filters.ModelMultipleChoiceFilter(
-        field_name='_connected_interface__device__tenant__slug',
+        field_name='device__tenant__slug',
         queryset=Tenant.objects.all(),
         to_field_name='slug',
         label='Customer (slug)',
diff --git a/netbox/vapor/tests/test_api.py b/netbox/vapor/tests/test_api.py
index f0d65483c..838bc2ac8 100644
--- a/netbox/vapor/tests/test_api.py
+++ b/netbox/vapor/tests/test_api.py
@@ -94,4 +94,4 @@ class VaporTestInterfaces(APITestCase):
         url = '{}?{}'.format(base_url, '&'.join(['{}={}'.format(k, v) for k, v in query.items()]))
         response = self.client.get(url, **self.header)
         self.assertEqual(response.data['count'], 1)
-        self.assertEqual(response.data['results'][0]['name'], self.interface2.name)
+        self.assertEqual(response.data['results'][0]['name'], self.interface1.name)