diff --git a/ja/about/index.md b/ja/about/index.md
index 5d7121be..e7a29a5b 100644
--- a/ja/about/index.md
+++ b/ja/about/index.md
@@ -126,7 +126,8 @@ description: 会社の事業やこれまでの取引先、役員情報などを
 	    <a href='#company'>会社情報</a>
 	  </h2>
         </div>
-	<img src='/img/logo_800x200.png' />
+	<img src='/img/logo_800x200.png'
+	     alt='Logo of YassLab Inc.' />
 	<div class="offset-md-1">
 	  {% include profile_company.html benefits=true %}
 	</div>