From 7e1796eafd24d446030d419cd87f73a1c3480831 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 7 Jan 2025 11:16:49 +0530
Subject: [PATCH] ...

---
 src/calibre/gui2/dialogs/select_formats.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/calibre/gui2/dialogs/select_formats.py b/src/calibre/gui2/dialogs/select_formats.py
index b23a5d8498..a7caa47d6f 100644
--- a/src/calibre/gui2/dialogs/select_formats.py
+++ b/src/calibre/gui2/dialogs/select_formats.py
@@ -33,7 +33,10 @@ class Formats(QAbstractListModel):
                 fmt = fmt.upper()
             return f'{fmt} [{count}]'
         if role == Qt.ItemDataRole.DecorationRole:
-            return (self.fi.icon_from_ext(self.fmts[row].lower()))
+            fmt = self.fmts[row]
+            if fmt == '..cover..':
+                fmt = 'jpg'
+            return (self.fi.icon_from_ext(fmt.lower()))
         if role == Qt.ItemDataRole.ToolTipRole:
             fmt = self.fmts[row]
             count = self.counts[fmt]