diff --git a/migrations/20240929-autumn-rewrite.mjs b/migrations/20240929-autumn-rewrite.mjs
index c8643bc..fe42368 100644
--- a/migrations/20240929-autumn-rewrite.mjs
+++ b/migrations/20240929-autumn-rewrite.mjs
@@ -28,6 +28,7 @@ const BUCKET_MAP = {
  */
 const CONNECTION_URL = "mongodb://database";
 
+const objectLookup = {};
 const mongo = new MongoClient(CONNECTION_URL);
 await mongo.connect();