diff --git a/src/routes/upload/+page.server.ts b/src/routes/upload/+page.server.ts
index 5eb911f..6fca1d9 100644
--- a/src/routes/upload/+page.server.ts
+++ b/src/routes/upload/+page.server.ts
@@ -20,7 +20,7 @@ export const actions: Actions = {
     const title = formData.get('title') as string;
     const file = formData.get('file') as File;
 
-    const objectKey = uuidv4();
+    const objectKey = `${uuidv4()}.mp3`;
 
     const err = await objectStorage.putObject(objectKey, new Uint8Array(await file.arrayBuffer()));
     if (err) {