diff --git a/layouts/404.html b/layouts/404.html
index ffcb47285d2..c4880a05442 100644
--- a/layouts/404.html
+++ b/layouts/404.html
@@ -49,7 +49,7 @@ <h1>{{T "title-404"}}</h1>
           <p>{{T "message-404"}}</p>
           <p></p>
           <p><a href='{{ "" | relLangURL }}'>{{T "Go-to-homepage"}}</a></p>
-          <p><img src='{{ "/images/gopher-404.jpg" | relURL }}' style="width:50%"></img></p>
+          <p><img src='{{ "/images/gopher-404.jpg" | relURL }}' style="width:50%" alt="Page not found!"></img></p>
         </div>
       </div>