From dcd5978707379c1ca292a778b4f5c0cbe0ac126e Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 9 May 2023 10:29:12 +0530
Subject: [PATCH] ...

---
 src/calibre/gui2/book_details.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/gui2/book_details.py b/src/calibre/gui2/book_details.py
index 71f44ffbe1..947bf1b48c 100644
--- a/src/calibre/gui2/book_details.py
+++ b/src/calibre/gui2/book_details.py
@@ -99,7 +99,7 @@ def copy_all(text_browser):
     simplified_html = etree.tostring(root, encoding='unicode')
     txt = html2text(simplified_html, single_line_break=True).strip()
     if iswindows:
-        txt = '\r\n'.join(txt.splitlines())
+        txt = os.linesep.join(txt.splitlines())
     # print(simplified_html)
     # print(txt)
     md.setText(txt)