diff --git a/frontend/index.pug b/frontend/index.pug
index 57f3282..c7ad43e 100755
--- a/frontend/index.pug
+++ b/frontend/index.pug
@@ -1,4 +1,4 @@
-html
+html(lang='en')
 	head
 		meta(charset='UTF-8')
 		meta(name='viewport' content='width=device-width, initial-scale=1.0')