diff --git a/app/Models/Transformers/StopTransformer.php b/app/Models/Transformers/StopTransformer.php
index e1cbcd95..0a47bc59 100644
--- a/app/Models/Transformers/StopTransformer.php
+++ b/app/Models/Transformers/StopTransformer.php
@@ -5,6 +5,7 @@
 use A17\Twill\Models\Contracts\TwillModelContract;
 use League\Fractal\TransformerAbstract;
 use App\Helpers\Util;
+use App\Models\Api\CollectionObject as ApiCollectionObject;
 use App\Models\CollectionObject;
 use App\Models\LoanObject;
 
@@ -12,17 +13,22 @@ class StopTransformer extends TransformerAbstract
 {
     public function transform(TwillModelContract $stop): array
     {
-        switch (get_class($stop->selector?->object)) {
+        $object = $stop->selector?->object;
+        switch (get_class($object)) {
             case CollectionObject::class:
                 $objectType = Util::COLLECTION_OBJECT;
                 break;
+            case ApiCollectionObject::class:
+                $objectType = Util::COLLECTION_OBJECT;
+                $object = $stop->selector?->object->getAugmentedModel();
+                break;
             case LoanObject::class:
                 $objectType = Util::LOAN_OBJECT;
                 break;
             default:
                 $objectType = 0;
         }
-        $nid = Util::cantorPair($objectType, $stop->object_id);
+        $nid = Util::cantorPair($objectType, $object->id);
         return [
             'object' => $nid,
             'audio_id' => (string) $stop->selector?->defaultAudio?->id,