diff --git a/src/pages/index/index.vue b/src/pages/index/index.vue
index 63c9eae..7e3c8f4 100644
--- a/src/pages/index/index.vue
+++ b/src/pages/index/index.vue
@@ -30,7 +30,7 @@ onLoad((options) => {
 })
 
 const saveM = () => {
-    download(detail.children?.material[current].material_arr);
+    download(detail.children?.material[current.value].material_arr);
     Api.system.checkDownload(detail.children.id);
 }
 </script>