From 189c931099531bbe628d7c3ddd4b0a2cb94a092d Mon Sep 17 00:00:00 2001
From: ranwang <ranwang.osbert@outlook.com>
Date: Tue, 21 Apr 2026 14:27:42 +0800
Subject: [PATCH] issue 256

---
 elegantbook.cls | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/elegantbook.cls b/elegantbook.cls
index 0f77e7d..0173635 100644
--- a/elegantbook.cls
+++ b/elegantbook.cls
@@ -1273,7 +1273,7 @@
 % \renewcommand{\headrule}{}
 \fancypagestyle{plain}{\renewcommand{\headrulewidth}{0pt}\fancyhf{}\renewcommand{\headrule}{}}
 \renewcommand{\sectionmark}[1]{\markright{\thesection\, #1}{}}
-\renewcommand{\chaptermark}[1]{\markboth{\xchaptertitle\, #1}{}}
+\renewcommand{\chaptermark}[1]{\markboth{\IfAppendix{\appendixname\;\thechapter\, #1}{\xchaptertitle\, #1}}{}}
 
 
 \renewcommand*{\maketitle}{%