diff --git a/app/views/layouts/_head.html.erb b/app/views/layouts/_head.html.erb
index 23a24c4a..b0220ddf 100644
--- a/app/views/layouts/_head.html.erb
+++ b/app/views/layouts/_head.html.erb
@@ -15,6 +15,17 @@
   <title><%= yield(:title) %></title>
   <%= csrf_meta_tags %>
   <meta name="viewport" content="width=device-width, user-scalable=no">
+  
+  <% if controller == 'maps' && @map %>
+    <meta property="og:title" content="<%= @map.title %>" />
+    <meta property="og:type" content="website" />
+    <meta property="og:image" content="<%= @map.screenshot_url %>" />
+    <meta property="og:description" content="<%= @map.desc %>" />
+
+    <meta name="twitter:title" content="<%= @map.title %>" />
+    <meta name="twitter:image" content="<%= @map.screenshot_url %>" />
+    <meta name="twitter:description" content="<%= @map.desc %>" />
+  <% end %>
 
   <%= stylesheet_link_tag    "application", :media => "all" %>
   <%= javascript_include_tag "application" %>