diff --git a/public/index.html b/public/index.html
index 7ea15d8..1cf46af 100644
--- a/public/index.html
+++ b/public/index.html
@@ -26,7 +26,7 @@
     <title>新T树洞</title>
 </head>
 <script>
-function force_reload() {
+  function force_reload() {
     if ('serviceWorker' in navigator) {
       navigator.serviceWorker
         .getRegistrations()
diff --git a/src/Flows.js b/src/Flows.js
index 5021fc4..8eb1f77 100644
--- a/src/Flows.js
+++ b/src/Flows.js
@@ -550,8 +550,9 @@ class FlowSidebar extends PureComponent {
   report(event, text = '') {
     console.log(text);
     let reason = prompt(`举报 #${this.state.info.pid} 的理由：`, text);
+    let should_hide = confirm('是否认为此洞应该被删除或隐藏？');
     if (reason !== null) {
-      API.report(this.state.info.pid, reason, this.props.token)
+      API.report(this.state.info.pid, reason, should_hide, this.props.token)
         .then((json) => {
           alert('举报成功');
         })
diff --git a/src/flows_api.js b/src/flows_api.js
index c2ee126..5585dc4 100644
--- a/src/flows_api.js
+++ b/src/flows_api.js
@@ -80,10 +80,14 @@ export const API = {
     return handle_response(response, false);
   },
 
-  report: async (pid, reason, token) => {
-    let data = new URLSearchParams();
-    data.append('pid', pid);
-    data.append('reason', reason);
+  report: async (pid, reason, should_hide, token) => {
+    let data = new URLSearchParams([
+      ['pid', pid],
+      ['reason', reason],
+    ]);
+    if (should_hide) {
+      data.append('should_hide', 1);
+    }
     let response = await fetch(API_BASE + '/report', {
       method: 'POST',
       headers: {