From 9b440f3ee087130bf9e9a54e9dd966cae1808b81 Mon Sep 17 00:00:00 2001
From: AaronBenDaniel <144371000+AaronBenDaniel@users.noreply.github.com>
Date: Mon, 9 Jun 2025 12:43:51 -0400
Subject: [PATCH] fix(api): Add .xhtml file extension to epub chapters

---
 src/api/src/create_book/generators/epub.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/api/src/create_book/generators/epub.py b/src/api/src/create_book/generators/epub.py
index b1695dc..7ffc50c 100644
--- a/src/api/src/create_book/generators/epub.py
+++ b/src/api/src/create_book/generators/epub.py
@@ -64,7 +64,7 @@ class EPUBGenerator(AbstractGenerator):
 
         for idx, (part, tree) in enumerate(zip(self.story["parts"], self.parts)):
             chapter = epub.EpubHtml(
-                title=part["title"], file_name=f"{idx}_{part['id']}"
+                title=part["title"], file_name=f"{idx}_{part['id']}.xhtml"
             )
 
             if self.images: