diff --git a/core/modules/startup/startup.js b/core/modules/startup/startup.js
index e09f6393f..dcfcac48a 100755
--- a/core/modules/startup/startup.js
+++ b/core/modules/startup/startup.js
@@ -88,6 +88,7 @@ exports.startup = function() {
 			if($tw.browser) {
 				var pluginTiddler = $tw.wiki.getTiddler(plugins[0]);
 				if(pluginTiddler) {
+					document.documentElement.setAttribute("lang",pluginTiddler.getFieldString("name"));
 					document.documentElement.setAttribute("dir",pluginTiddler.getFieldString("text-direction") || "auto");
 				} else {
 					document.documentElement.removeAttribute("dir");