diff --git a/src/utils/uploadZip.js b/src/utils/uploadZip.js
index 5656071..f4adbb0 100644
--- a/src/utils/uploadZip.js
+++ b/src/utils/uploadZip.js
@@ -90,7 +90,7 @@ const setfolder = async (item) => {
 const handleBatchDown = async (item, zip) => {
     return new Promise((resolve) => {
         getFileData(
-            Vue.prototype.OSSclientConfig.basePath + item.instancePath.slice(1)
+            Vue.prototype.OSSclientConfig.basePath + item.instancePath
         ).then((res) => {
             const fileName = item.dicomName + ".dcm";
             zip.file(fileName, res.data, { binary: true });