diff --git a/chrome/content/zotero/itemPane.xul b/chrome/content/zotero/itemPane.xul
index b36d50ba0d..4b6c35a5a8 100644
--- a/chrome/content/zotero/itemPane.xul
+++ b/chrome/content/zotero/itemPane.xul
@@ -24,7 +24,6 @@
     ***** END LICENSE BLOCK *****
 -->
 <?xml-stylesheet href="chrome://zotero/skin/itemPane.css" type="text/css"?>
-<?xml-stylesheet href="chrome://zotero-platform/content/itemPane.css" type="text/css"?>
 
 <!DOCTYPE window SYSTEM "chrome://zotero/locale/zotero.dtd">