diff --git a/lib/template.html b/lib/template.html
index 42a4957595..a3bc5e56ac 100644
--- a/lib/template.html
+++ b/lib/template.html
@@ -2,6 +2,7 @@
 <html>
   <head>
     <meta http-equiv="Content-type" content="text/html; charset=utf-8"/>
+    <meta name="viewport" content="width=device-width, initial-scale=1">
     <title><%= htmlWebpackPlugin.options.title %></title>
   </head>
   <body>
