diff --git a/_includes/head.html b/_includes/head.html
index 012292c..761e87e 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -28,6 +28,10 @@
   <meta property="og:description" content="{{ desc }}" />
   <!-- Open Graph protocol -->
 
+  <!-- Facebook tags -->
+  <meta property="fb:app_id" content="691723664330476"/>
+  <!-- Facebook tags -->
+
   <!--[if lt IE 9]>
     <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
     <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>