diff --git a/web_interface/js/site.js b/web_interface/js/site.js
index 55e526c..54665e7 100644
--- a/web_interface/js/site.js
+++ b/web_interface/js/site.js
@@ -99,6 +99,7 @@ function parseLang(fileStr){
 			element.innerHTML = lang(element.getAttribute("data-translate"));
 		}
 	}
+        document.querySelector('html').setAttribute("lang", langJson["lang"] );
 	if(typeof load !== 'undefined') load();
 }
 
@@ -114,4 +115,4 @@ function loadLang(){
 			getFile("lang/en.lang", parseLang); 
 		}
 	);
-}
\ No newline at end of file
+}