diff --git a/src/client/web/src/components/pane_admin.tsx b/src/client/web/src/components/pane_admin.tsx
index eb1b775..01df2bd 100644
--- a/src/client/web/src/components/pane_admin.tsx
+++ b/src/client/web/src/components/pane_admin.tsx
@@ -268,20 +268,6 @@ export class UserForm extends React.Component<
 
           <div className="hr"></div>
 
-          <div>
-            <Flexbox
-              children={List([
-                <span>{this.props.msg.pkg.get("action.reindex.desc")}</span>,
-                <button className="button-default" onClick={resetUsedSpace}>
-                  {this.props.msg.pkg.get("action.reindex")}
-                </button>,
-              ])}
-              childrenStyles={List([{}, { justifyContent: "flex-end" }])}
-            />
-          </div>
-
-          <div className="hr"></div>
-
           <Flexbox
             className="margin-t-m"
             children={List([
@@ -505,10 +491,6 @@ export class AdminPane extends React.Component<Props, State, {}> {
     }
   };
 
-  reindex = async () => {
-    return updater().reindex();
-  }
-
   addUser = async () => {
     if (this.state.newUserPwd1 !== this.state.newUserPwd2) {
       Env().alertMsg(this.props.msg.pkg.get("settings.pwd.notSame"));
@@ -876,6 +858,13 @@ export class SiteCfg extends React.Component<SiteCfgProps, SiteCfgState, {}> {
     this.props.update(updater().updateUI);
   };
 
+  reindex = async () => {
+    if (!Env().confirmMsg(this.props.msg.pkg.get("action.reindex.confirm"))) {
+      return;
+    }
+    return updater().reindex();
+  };
+
   render() {
     return (
       <div>
@@ -1050,6 +1039,17 @@ export class SiteCfg extends React.Component<SiteCfgProps, SiteCfgState, {}> {
             />
           </div>
         </div>
+
+        <div className="hr"></div>
+
+        <div>
+          <div className="label">
+            {this.props.msg.pkg.get("action.reindex.desc")}
+          </div>
+          <button className="button-default" onClick={this.reindex}>
+            {this.props.msg.pkg.get("action.reindex")}
+          </button>
+        </div>
       </div>
     );
   }
diff --git a/src/client/web/src/i18n/en_US.ts b/src/client/web/src/i18n/en_US.ts
index a5ef387..1f5b94b 100644
--- a/src/client/web/src/i18n/en_US.ts
+++ b/src/client/web/src/i18n/en_US.ts
@@ -160,5 +160,6 @@ export const msgs: Map<string, string> = Map({
   "action.go": "Go",
   "hint.keywords": "Please input keyword(s), separated by spaces",
   "action.reindex": "Reindex",
-  "action.reindex.desc": "Reconstruct the searching index",
+  "action.reindex.desc": "Reconstruct the search index",
+  "action.reindex.confirm": "If there are a lot of files and folders, rebuilding index may take some time.",
 });
diff --git a/src/client/web/src/i18n/zh_CN.ts b/src/client/web/src/i18n/zh_CN.ts
index f06976e..7c762ea 100644
--- a/src/client/web/src/i18n/zh_CN.ts
+++ b/src/client/web/src/i18n/zh_CN.ts
@@ -158,4 +158,5 @@ export const msgs: Map<string, string> = Map({
   "hint.keywords": "请输入关键字，以空格分隔",
   "action.reindex": "重新索引",
   "action.reindex.desc": "重新建立搜索索引",
+  "action.reindex.confirm": "当文件数量较多，重新建立索引将可能花费一些时间",
 });