diff --git a/layouts/partials/head.html b/layouts/partials/head.html
index c289769..33b1156 100644
--- a/layouts/partials/head.html
+++ b/layouts/partials/head.html
@@ -14,15 +14,18 @@
 
   <meta property="og:title" content="{{.Params.Title}}">
 
-  {{if isset .Params "tags"}}
+  {{if or (isset .Params "tags") (isset .Params "topic") (isset .Params "series") }}
     <meta property="og:type" content="article">
   {{else}}
     <meta property="og:type" content="website">
   {{end}}
 
   {{if isset .Params "description"}}
-  <meta property="og:description" content="{{.Params.description | safeHTML}}">
+  <meta property="og:description" content="{{ .Params.description | safeHTML}}">
+  {{else}}
+  <meta property="og:description" content="{{ .Summary | safeHTML }}">
   {{end}}
+
   <meta property="og:url" content="{{.Permalink}}">
 
   <meta name="description" content="{{ if .IsNode }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ else }}{{ with .Description }}{{ . }}{{ end }}{{ end }}">