diff --git a/chrome/content/zotero/reader.xhtml b/chrome/content/zotero/reader.xhtml
index 4b20c49117..3ab77a2e61 100644
--- a/chrome/content/zotero/reader.xhtml
+++ b/chrome/content/zotero/reader.xhtml
@@ -353,4 +353,18 @@
 			</popupset>
 		</vbox>
 	</hbox>
+	
+	<popupset>
+		<panel
+			is="autocomplete-richlistbox-popup"
+			type="autocomplete-richlistbox"
+			id="PopupAutoComplete"
+			role="group"
+			noautofocus="true"
+			hidden="true"
+			overflowpadding="4"
+			norolluponanchor="true"
+			nomaxresults="true"
+		/>
+	</popupset>
 </window>