diff --git a/examples/md/index.html b/examples/md/index.html
index c43bba14b..428d8fee2 100644
--- a/examples/md/index.html
+++ b/examples/md/index.html
@@ -2,6 +2,7 @@
 <html>
   <head>
     <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title><%= htmlWebpackPlugin.options.title %></title>
     <link href="https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300,700&display=swap" rel="stylesheet">
   </head>
