diff --git a/app/views/layouts/_head.html.erb b/app/views/layouts/_head.html.erb
index 367f11086..e586fe4cb 100644
--- a/app/views/layouts/_head.html.erb
+++ b/app/views/layouts/_head.html.erb
@@ -1,4 +1,3 @@
-<meta name="viewport" content="width=device-width, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
 <meta name="author" content="">
 <meta name="generator" content="Discourse <%= Discourse::VERSION::STRING %> - https://github.com/discourse/discourse version <%= Discourse.git_version %>">
 
diff --git a/app/views/layouts/application.html.erb b/app/views/layouts/application.html.erb
index 02618bfcf..a99675e83 100644
--- a/app/views/layouts/application.html.erb
+++ b/app/views/layouts/application.html.erb
@@ -5,6 +5,7 @@
     <title><%= content_for?(:title) ? yield(:title) + ' - ' + SiteSetting.title : SiteSetting.title %></title>
     <meta name="description" content="<%= @description_meta || SiteSetting.site_description %>">
     <%= render partial: "layouts/head" %>
+    <meta name="viewport" content="width=device-width, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
 
     <%- if SiteSetting.enable_escaped_fragments? %>
       <meta name="fragment" content="!">
diff --git a/app/views/layouts/crawler.html.erb b/app/views/layouts/crawler.html.erb
index 8775cb8c7..89d713999 100644
--- a/app/views/layouts/crawler.html.erb
+++ b/app/views/layouts/crawler.html.erb
@@ -9,6 +9,7 @@
       <%= raw SiteCustomization.custom_head_tag(session[:preview_style]) %>
     <%- end %>
     <%= yield :head %>
+    <meta name="viewport" content="width=720, minimum-scale=1.0, maximum-scale=1.0, user-scalable=yes">
   </head>
   <body>
     <%- unless customization_disabled? %>
diff --git a/app/views/layouts/no_js.html.erb b/app/views/layouts/no_js.html.erb
index 64999a392..14ae98869 100644
--- a/app/views/layouts/no_js.html.erb
+++ b/app/views/layouts/no_js.html.erb
@@ -9,6 +9,7 @@
       <%= raw SiteCustomization.custom_head_tag(session[:preview_style]) %>
     <%- end %>
     <%= yield(:no_js_head) %>
+    <meta name="viewport" content="width=720, minimum-scale=1.0, maximum-scale=1.0, user-scalable=yes">
   </head>
   <body>
     <%- unless customization_disabled? %>
diff --git a/app/views/topics/plain.html.erb b/app/views/topics/plain.html.erb
index 8da43ff24..7c852a3b6 100644
--- a/app/views/topics/plain.html.erb
+++ b/app/views/topics/plain.html.erb
@@ -6,7 +6,6 @@
   <%= crawlable_meta_data(title: @topic_view.title,
                           description: @topic_view.summary,
                           image: @topic_view.image_url) %>
-  <meta name="viewport" content="width=720, minimum-scale=1.0, maximum-scale=1.0, user-scalable=yes">
 </head>
 <body>
 <% @topic_view.posts.each do |post| %>
