diff --git a/tieba page.js b/tieba page.js
index cebd656..6864a11 100644
--- a/tieba page.js	
+++ b/tieba page.js	
@@ -1,7 +1,7 @@
 // ==UserScript==
 // @name         tieba page
 // @namespace    http://tampermonkey.net/
-// @version      1.019
+// @version      1.020
 // @author       fthvgb1
 // @match        https://tieba.baidu.com/*
 // @match        https://tiebac.baidu.com/*
@@ -919,7 +919,10 @@
         ]);
 
 
-        document.querySelector('.father-cut-pager-class-no-page').classList.remove('father-cut-pager-class-no-page');
+        let lxf = document.querySelector('.father-cut-pager-class-no-page')
+        if(lxf){
+            lxf.classList.remove('father-cut-pager-class-no-page');
+        }
 
         let list = document.querySelector('ul#pblist');
         let MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver;