diff --git a/index.html b/index.html
index cd4710e..6a92994 100644
--- a/index.html
+++ b/index.html
@@ -8,6 +8,7 @@
         <link href="assets/css/index.css" rel="stylesheet">
         <meta name="author" content="Naoki Rinmous">
         <meta charset="utf-8">
+        <meta name="viewport"" content="width=device-width, initial-scale=1">
         <title>Naoki Rinmous is here!</title>
     </head>
     <body>
