diff --git a/index.html b/index.html
index 6436ead..f5cae8e 100644
--- a/index.html
+++ b/index.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html>
+<html lang="en">
     <head>
         <meta charset="utf-8">
         <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=0">
