diff --git a/pages/api/collections/[identifier]/thumbnails.js b/pages/api/collections/[identifier]/thumbnails.js
index a86c730..9947c34 100644
--- a/pages/api/collections/[identifier]/thumbnails.js
+++ b/pages/api/collections/[identifier]/thumbnails.js
@@ -114,7 +114,7 @@ export default async function handler(req, res) {
       LIMIT 5
     `;
 
-    const thumbnails = thumbnailsResult.map(card => ({
+    const thumbnails = (thumbnailsResult || []).map(card => ({
       id: card.id,
       name: card.name,
       rarity: card.rarity,
@@ -126,7 +126,7 @@ export default async function handler(req, res) {
       quantity: parseInt(card.quantity) || 1
     }));
 
-    res.status(200).json(thumbnails);
+    res.status(200).json({ thumbnails });
 
   } catch (error) {
     console.error('Error fetching collection thumbnails:', error);