diff --git a/_includes/head.html b/_includes/head.html
index 15c5f76..04fdaab 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -10,12 +10,12 @@
     {% if page.collection == "posts" %}
         <meta property="og:type" 
             content="article"/>
-        <meta property="og:article:published_time" 
+        <meta property="article:published_time" 
             content="{{ page.date | date_to_xmlschema }}"/>
-        <meta property="og:article:section"
+        <meta property="article:section"
             content="Blog"/>
         {% for tag in page.tags %}
-            <meta property="og:article:tag" content="{{ tag }}"/>
+            <meta property="article:tag" content="{{ tag }}"/>
         {% endfor %}
         {% if page.image %}
             <meta property="og:image"