diff --git a/layout/common/head.ejs b/layout/common/head.ejs
index cab8859..8d3258c 100644
--- a/layout/common/head.ejs
+++ b/layout/common/head.ejs
@@ -4,13 +4,17 @@
 <%- meta(page) %>
 
 <% if (has_config('open_graph')) { %>
-    <%- open_graph({
+    <% const og_options = {
         twitter_id: get_config('open_graph.twitter_id'),
         twitter_site: get_config('open_graph.twitter_site'),
         google_plus: get_config('open_graph.google_plus'),
         fb_admins: get_config('open_graph.fb_admins'),
         fb_app_id: get_config('open_graph.fb_app_id')
-    }) %>
+    };
+    if (has_thumbnail(page)) {
+        og_options['image'] = get_thumbnail(page);
+    } %>
+    <%- open_graph(og_options) %>
 <% } %>
 
 <% if (has_config('rss')) { %>