diff --git a/index.html b/index.html
index 9fea14b..f132b7d 100644
--- a/index.html
+++ b/index.html
@@ -3,6 +3,7 @@
 <head>
 <meta charset="utf-8" />
 <title>Grepping twitter backup</title>
+<meta content="width=device-width, initial-scale=1,maximum-scale=1.0;" name=viewport>
 <link rel="stylesheet" href="http://twitter.github.com/bootstrap/1.4.0/bootstrap.min.css">
 <link rel="stylesheet" type="text/css" href="/style.css">
 </head>
diff --git a/index.shtml b/index.shtml
index f2522e4..ec8b84e 100644
--- a/index.shtml
+++ b/index.shtml
@@ -3,6 +3,7 @@
 <head>
 <meta charset="utf-8" />
 <title>GrepTweet</title>
+<meta content="width=device-width, initial-scale=1,maximum-scale=1.0;" name=viewport>
 <link rel="stylesheet" href="http://twitter.github.com/bootstrap/1.4.0/bootstrap.min.css">
 <link rel="stylesheet" type="text/css" href="style.css">
 <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
