diff --git a/chrome/content/zotero/xpcom/translation/translator.js b/chrome/content/zotero/xpcom/translation/translator.js
index 5774358ac..5a4b7b43b 100644
--- a/chrome/content/zotero/xpcom/translation/translator.js
+++ b/chrome/content/zotero/xpcom/translation/translator.js
@@ -222,7 +222,7 @@ Zotero.Translators = new function() {
 			if(m) {
 				// First, drop the 0- if it exists (this is an III invention)
 				var host = m[2];
-				if(host.substr(0, 2) === "0-") host = substr(2);
+				if(host.substr(0, 2) === "0-") host = host.substr(2);
 				var hostnames = host.split(".");
 				for(var i=1; i<hostnames.length-2; i++) {
 					if(TLDS[hostnames[i].toLowerCase()]) {