diff --git a/apps/readest-app/src/utils/txt.ts b/apps/readest-app/src/utils/txt.ts
index 7594cb09..8e6153a1 100644
--- a/apps/readest-app/src/utils/txt.ts
+++ b/apps/readest-app/src/utils/txt.ts
@@ -115,9 +115,10 @@ export class TxtToEpubConverter {
             [
               String.raw`第[零〇一二三四五六七八九十0-9][零〇一二三四五六七八九十百千万0-9]*(?:[章卷节回讲篇封本册部话])(?:[：:、 　\(\)0-9]*[^\n-]{0,24})(?!\S)`,
               String.raw`(?:楔子|前言|简介|引言|序言|序章|总论|概论|后记)(?:[：: 　][^\n-]{0,24})?(?!\S)`,
+              String.raw`chapter[\s.]*[0-9]+(?:[：:. 　]+[^\n-]{0,50})?(?!\S)`,
             ].join('|') +
             ')',
-          'gu',
+          'gui',
         ),
       );
       chapterRegexps.push(