diff --git a/netbox/circuits/tests/test_api.py b/netbox/circuits/tests/test_api.py
index b2a1398a0..71db7234d 100644
--- a/netbox/circuits/tests/test_api.py
+++ b/netbox/circuits/tests/test_api.py
@@ -52,9 +52,9 @@ class ProviderTest(APIViewTestCases.APIViewTestCase):
         provider = self.model.objects.first()
         ct = ContentType.objects.get(app_label='circuits', model='provider')
         graphs = (
-            Graph(type=ct, name='Graph 1', source='http://example.com/graphs.py?site={{ obj.slug }}&foo=1'),
-            Graph(type=ct, name='Graph 2', source='http://example.com/graphs.py?site={{ obj.slug }}&foo=2'),
-            Graph(type=ct, name='Graph 3', source='http://example.com/graphs.py?site={{ obj.slug }}&foo=3'),
+            Graph(type=ct, name='Graph 1', source='http://example.com/graphs.py?provider={{ obj.slug }}&foo=1'),
+            Graph(type=ct, name='Graph 2', source='http://example.com/graphs.py?provider={{ obj.slug }}&foo=2'),
+            Graph(type=ct, name='Graph 3', source='http://example.com/graphs.py?provider={{ obj.slug }}&foo=3'),
         )
         Graph.objects.bulk_create(graphs)
 
diff --git a/netbox/utilities/api.py b/netbox/utilities/api.py
index 205055669..b4482198a 100644
--- a/netbox/utilities/api.py
+++ b/netbox/utilities/api.py
@@ -6,14 +6,13 @@ from django.conf import settings
 from django.contrib.contenttypes.models import ContentType
 from django.core.exceptions import FieldError, MultipleObjectsReturned, ObjectDoesNotExist
 from django.db.models import ManyToManyField, ProtectedError
-from django.http import Http404
 from django.urls import reverse
 from rest_framework.exceptions import APIException
 from rest_framework.permissions import BasePermission
 from rest_framework.relations import PrimaryKeyRelatedField, RelatedField
 from rest_framework.response import Response
 from rest_framework.serializers import Field, ModelSerializer, ValidationError
-from rest_framework.viewsets import ModelViewSet as _ModelViewSet, ViewSet
+from rest_framework.viewsets import ModelViewSet as _ModelViewSet
 
 from .utils import dict_to_filter_params, dynamic_import