diff --git a/chrome/content/zotero/xpcom/search.js b/chrome/content/zotero/xpcom/search.js
index fa84c83f8c..ea9189af71 100644
--- a/chrome/content/zotero/xpcom/search.js
+++ b/chrome/content/zotero/xpcom/search.js
@@ -1684,7 +1684,7 @@ Zotero.Search.prototype._buildQuery = function(){
 
 
 Zotero.Search.prototype._generateKey = function () {
-	return Zotero.ID.getKey();
+	return Zotero.Utilities.generateObjectKey();
 }