diff --git a/layouts/posts/single.html b/layouts/posts/single.html
index 66e6afd..12f3ed9 100644
--- a/layouts/posts/single.html
+++ b/layouts/posts/single.html
@@ -28,6 +28,7 @@
             <meta property="article:tag" content="{{ . }}" />
         {{ end }}
     {{ end }}
+    <meta property="twitter:card" content="summary_large_image" />
 {{ end }}
 
 {{ define "main" }}