From a8b006bb2559733b95847647ef6f1eb836f5e6aa Mon Sep 17 00:00:00 2001
From: John Factotum <50942278+johnfactotum@users.noreply.github.com>
Date: Wed, 30 Oct 2024 17:09:16 +0800
Subject: [PATCH] Fix subject metadata

---
 src/book-info.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/book-info.js b/src/book-info.js
index 2c267307..60995a3a 100644
--- a/src/book-info.js
+++ b/src/book-info.js
@@ -159,7 +159,7 @@ const makeBookInfoBox = (metadata, pixbuf) => {
             margin_top: 12,
         })
         box.append(subjectsBox)
-        for (const subject of metadata.subject)
+        for (const subject of [].concat(metadata.subject))
             subjectsBox.insert(makeSubjectBox(subject), -1)
     }