diff --git a/themes/hello-friend-ng/layouts/_default/single.html b/themes/hello-friend-ng/layouts/_default/single.html
index c007270f..85317429 100644
--- a/themes/hello-friend-ng/layouts/_default/single.html
+++ b/themes/hello-friend-ng/layouts/_default/single.html
@@ -9,9 +9,9 @@
         </svg>
         {{ i18n "readingTime" .Page.ReadingTime }}
       </p>
-      <p class="author" aria-hidden="true">
+      <p class="author h-card" aria-hidden="true">
         <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-user"><path d="M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2"></path><circle cx="12" cy="7" r="4"></circle></svg>
-        <a href="{{ .Site.BaseURL | absURL }}" rel="author" class="p-author">{{ .Site.Author.name }}</a>
+        <a href="{{ .Site.BaseURL | absURL }}" rel="author" class="p-author u-url">{{ .Site.Author.name }}</a>
       </p>
     </div>