diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index 9ceae83..01837d4 100644
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -5,6 +5,8 @@
         <meta name="viewport" content="width=device-width, initial-scale=1.0" />
         <title>michael's blog</title>
 
+        {{ block "headExtra" . }}{{ end }}
+
         {{ $style := resources.Get "sass/main.scss" | resources.ToCSS }}
         <link rel="stylesheet" href="{{ $style.RelPermalink }}" />
     </head>
diff --git a/layouts/posts/single.html b/layouts/posts/single.html
index 930b893..032cada 100644
--- a/layouts/posts/single.html
+++ b/layouts/posts/single.html
@@ -1,3 +1,7 @@
+{{- define "headExtra" -}}
+<meta name="description" content="{{ .Summary }}" />
+{{- end -}}
+
 {{- define "content" -}}
 
 <a href="../">&laquo; back</a>