diff --git a/src/api.js b/src/api.js
index e88f0d1..1c726c8 100644
--- a/src/api.js
+++ b/src/api.js
@@ -119,6 +119,7 @@ const getBucketFiles = async (folderName) => {
 
     const totalCount = filteredItems.length * 3;
     const setup_items = [];
+    let setup_offset = 0;
     for (let i = 0; i < totalCount && i < filteredItems.length; i += 3) {
       const parts = filteredItems[i].name.split("_");
       let item = ret.filter(
@@ -144,11 +145,12 @@ const getBucketFiles = async (folderName) => {
             (item) => item.key == setup_key + ".sig",
           );
           setup_items.push([
-            { idx: i + 3 },
+            { idx: i + 3 + setup_offset },
             setup_item,
             setup_item2,
             setup_item3,
           ]);
+          setup_offset += 3;
         }
       }
     }