diff --git a/netbox/extras/graphql/types.py b/netbox/extras/graphql/types.py
index dbaa0bee2..ad200b35f 100644
--- a/netbox/extras/graphql/types.py
+++ b/netbox/extras/graphql/types.py
@@ -27,7 +27,7 @@ class CustomFieldType(ObjectType):
 
     class Meta:
         model = models.CustomField
-        fields = '__all__'
+        exclude = ('content_types', )
         filterset_class = filtersets.CustomFieldFilterSet