diff --git a/portal/portal_header.php b/portal/portal_header.php
index ee4afa20..cc89995c 100644
--- a/portal/portal_header.php
+++ b/portal/portal_header.php
@@ -6,7 +6,7 @@
 ?>
 
 <!DOCTYPE html>
-<html>
+<html lang="en">
 <head>
     <meta charset="utf-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
@@ -65,4 +65,4 @@
 <br>
 
 <!-- Page content container -->
-<div class="container">
\ No newline at end of file
+<div class="container">
