diff --git a/jero-web/src/views/modules/monitor/DiskMonitoring.vue b/jero-web/src/views/modules/monitor/DiskMonitoring.vue
index 07321cee..7af8f38e 100644
--- a/jero-web/src/views/modules/monitor/DiskMonitoring.vue
+++ b/jero-web/src/views/modules/monitor/DiskMonitoring.vue
@@ -34,7 +34,7 @@ export default {
   created () {
     getAction(this.url.queryDiskInfo).then((res) => {
       if (res.success) {
-        for (var i = 0; i < res.result.length; i++) {
+        for (let i = 0; i < res.result.length; i++) {
           res.result[i].restPPT = res.result[i].restPPT / 10
         }
         this.diskInfo = res.result