From 5b9ac2ca53f23c67e1f123c2feaf8dc460205ea6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adomas=20Ven=C4=8Dkauskas?= <adomas.ven@gmail.com>
Date: Tue, 5 Apr 2022 10:07:36 +0300
Subject: [PATCH] Fix a non-terminal startup error introduced in d7b1a53

---
 chrome/content/zotero/zoteroPane.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/chrome/content/zotero/zoteroPane.js b/chrome/content/zotero/zoteroPane.js
index 0299e609f1..bfb9f3c0ca 100644
--- a/chrome/content/zotero/zoteroPane.js
+++ b/chrome/content/zotero/zoteroPane.js
@@ -5460,7 +5460,7 @@ var ZoteroPane = new function()
 	};
 
 	this.updateItemTreeColumnWidths = function() {
-		if (!ZoteroPane.itemsView) return;
+		if (!ZoteroPane.itemsView || !ZoteroPane.itemsView.tree) return;
 		ZoteroPane.itemsView.tree.updateColumnWidths();
 	};