diff --git a/chrome/content/zotero/xpcom/rdf/serialize.js b/chrome/content/zotero/xpcom/rdf/serialize.js
index 267662750..0eb51ac1c 100644
--- a/chrome/content/zotero/xpcom/rdf/serialize.js
+++ b/chrome/content/zotero/xpcom/rdf/serialize.js
@@ -566,7 +566,7 @@ __Serializer.prototype.statementsToXML = function(sts) {
     
     function escapeForXML(str) {
         if (typeof str == 'undefined') return '@@@undefined@@@@';
-        return str.replace(/&/g, '&amp;').replace(/</g, '&lt;')
+        return str.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/"/g, '&quot;');
     }
 
     function relURI(term) {