diff --git a/templates/base.twig b/templates/base.twig
index e366f37522b22418abf8947615ba2f587e22dfa3..73cfdc3946c42be5f4b8f01a8439e26f3361236c 100644
--- a/templates/base.twig
+++ b/templates/base.twig
@@ -1,5 +1,5 @@
<!DOCTYPE html>
-<html>
+<html lang="{{ currentLanguage }}" xml:lang="{{ currentLanguage }}">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="initial-scale=1.0">