1 files changed, 1 insertions, 1 deletions
diff --git a/play.html b/play.html
index 05bd896..7317806 100644
--- a/play.html
+++ b/play.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html>
 <!-- vim:set nowrap: -->
-<html>
+<html lang="en">
 <head>
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <meta charset="UTF-8">