diff --git a/lib/app/index.dev.html b/lib/app/index.dev.html
index d27b7a25fa..b9db5b041b 100644
--- a/lib/app/index.dev.html
+++ b/lib/app/index.dev.html
@@ -2,7 +2,7 @@
 <html lang="en">
   <head>
     <meta charset="utf-8">
-    <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
+    <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
     <title></title>
   </head>
   <body>
diff --git a/lib/app/index.ssr.html b/lib/app/index.ssr.html
index d61f12366e..9ad40786b6 100644
--- a/lib/app/index.ssr.html
+++ b/lib/app/index.ssr.html
@@ -2,7 +2,7 @@
 <html lang="{{ lang }}">
   <head>
     <meta charset="utf-8">
-    <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
+    <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
     <title>{{ title }}</title>
     {{{ userHeadTags }}}
     {{{ pageMeta }}}
