diff --git a/src/server/routes/op.ts b/src/server/routes/op.ts
index be0c27c..43fe1c4 100644
--- a/src/server/routes/op.ts
+++ b/src/server/routes/op.ts
@@ -293,8 +293,8 @@ opRouter.get('/op/datapack/:packName/images-zip', requireAuth, async (req, res,
         asset_id: `musicquiz:cover_${nn}`,
         width: size,
         height: size,
-        title: { text: `Cover ${nn}` },
-        author: { text: 'music quiz' }
+        author: 'musicquiz',
+        title: `cover_${nn}`
       }
       archive.append(JSON.stringify(json, null, 2) + '\n', { name: `cover_${nn}.json` })
     }