diff --git a/lib/wallet/query.ts b/lib/wallet/query.ts
index c7420a3f7..3119aa58f 100644
--- a/lib/wallet/query.ts
+++ b/lib/wallet/query.ts
@@ -290,7 +290,7 @@ class QueryRoot {
    */
   putAll(storeName: string, iterable: any[]): QueryRoot {
     const doPutAll = (tx: IDBTransaction) => {
-      for (const obj of iterable) {
+      for (let obj of iterable) {
         tx.objectStore(storeName).put(obj);
       }
     };
@@ -412,4 +412,4 @@ class QueryRoot {
       this.hasWrite = true;
     }
   }
-}
\ No newline at end of file
+}