diff --git a/site/_includes/header.html b/site/_includes/header.html
index 39de1bf2..eb4baeb8 100644
--- a/site/_includes/header.html
+++ b/site/_includes/header.html
@@ -7,7 +7,7 @@
       <h1>
         <a href="{{ site.url }}/">
           <span>Jekyll</span>
-          <img src="{{ site.url }}/img/logo-2x.png" width="249" height="115" alt="">
+          <img src="{{ site.url }}/img/logo-2x.png" width="249" height="115" alt="Logo">
         </a>
       </h1>
     </div>
diff --git a/site/_layouts/news_item.html b/site/_layouts/news_item.html
index 059ef03b..48f723fc 100644
--- a/site/_layouts/news_item.html
+++ b/site/_layouts/news_item.html
@@ -17,7 +17,7 @@ layout: news
       {{ page.date | date_to_string }}
     </span>
     <a href="https://github.com/{{ page.author }}" class="post-author">
-      <img src="https://github.com/{{ page.author }}.png" class="avatar">
+      <img src="https://github.com/{{ page.author }}.png" class="avatar" alt="{{ page.author }}">
       {{ page.author }}
     </a>
   </div>