diff --git a/chrome/content/zotero/xpcom/utilities_translate.js b/chrome/content/zotero/xpcom/utilities_translate.js
index af9ca64a94..fab378e6e1 100644
--- a/chrome/content/zotero/xpcom/utilities_translate.js
+++ b/chrome/content/zotero/xpcom/utilities_translate.js
@@ -235,7 +235,7 @@ Zotero.Utilities.Translate.prototype.processDocuments = function(urls, processor
 		var newLoc = doc.location;
 		if(Zotero.isFx && (loc.protocol !== newLoc.protocol || loc.host !== newLoc.host)) {
 			// Cross-site; need to serialize and unserialize
-			processor(Zotero.Translate.SandboxManager.Fx5DOMWrapper(doc, newLoc.toString()));
+			processor(Zotero.Translate.SandboxManager.Fx5DOMWrapper(doc), newLoc.toString());
 		} else {
 			// Not cross-site; no need to wrap
 			processor(doc, newLoc.toString());