diff --git a/app/views/calagator/site/about.html.erb b/app/views/calagator/site/about.html.erb
index 260e4f17..357e596c 100644
--- a/app/views/calagator/site/about.html.erb
+++ b/app/views/calagator/site/about.html.erb
@@ -75,12 +75,12 @@
   <h1>Attributions</h1>
   <p>Calagator uses several trademarked logos throughout the site:</p>
   <ul>
-    <li><a href="https://www.ruby-lang.org/en/about/logo/"><%= image_tag "tag_icons/ruby.png" %> Ruby logo is Copyright © 2006, Yukihiro Matsumoto</a></li>
-    <li><%= image_tag "tag_icons/golang.png" %> The Go gopher was designed by Renee French. (<a href="http://reneefrench.blogspot.com/">http://reneefrench.blogspot.com/</a>)</li>
-    <li><a href="http://isc.tamu.edu/~lewing/linux/"><%= image_tag "tag_icons/linux.png" %> Tux, the Linux penguin, was designed by Larry Ewing</a></li>
-    <li><%= image_tag "tag_icons/html.png" %> HTML5 Logo by <a href="http://www.w3.org/"><abbr title="World Wide Web Consortium">W3C</abbr></a></li>
-    <li><a href="http://sass-lang.com/styleguide/brand/"><%= image_tag "tag_icons/sass.png" %> Sass logo by Sass</a></li>
-    <li><%= image_tag "tag_icons/rails.png" %> Rails logo is a trademark of <a href="http://david.heinemeierhansson.com/">David Heinemeier Hansson</a></li>
-    <li><%= image_tag "tag_icons/swift.png" %> Swift logo is Copyright © 2014 <a href="https://developer.apple.com/swift/">Apple, Inc</a></li>
+    <li><a href="https://www.ruby-lang.org/en/about/logo/"><%= image_tag "tag_icons/ruby.png" alt: "Ruby logo" %> Ruby logo is Copyright © 2006, Yukihiro Matsumoto</a></li>
+    <li><%= image_tag "tag_icons/golang.png" alt: "Go gopher" %> The Go gopher was designed by Renee French. (<a href="http://reneefrench.blogspot.com/">http://reneefrench.blogspot.com/</a>)</li>
+    <li><a href="http://isc.tamu.edu/~lewing/linux/"><%= image_tag "tag_icons/linux.png" alt: "Tux, the Linux penguin" %> Tux, the Linux penguin, was designed by Larry Ewing</a></li>
+    <li><%= image_tag "tag_icons/html.png" alt: "HTML5 logo" %> HTML5 Logo by <a href="http://www.w3.org/"><abbr title="World Wide Web Consortium">W3C</abbr></a></li>
+    <li><a href="http://sass-lang.com/styleguide/brand/"><%= image_tag "tag_icons/sass.png" alt: "Sass logo" %> Sass logo by Sass</a></li>
+    <li><%= image_tag "tag_icons/rails.png" alt: "Rails logo" %> Rails logo is a trademark of <a href="http://david.heinemeierhansson.com/">David Heinemeier Hansson</a></li>
+    <li><%= image_tag "tag_icons/swift.png" alt: "Swift logo" %> Swift logo is Copyright © 2014 <a href="https://developer.apple.com/swift/">Apple, Inc</a></li>
   </ul>
 </div>