diff --git a/lib/html.js b/lib/html.js
index 5738396..ab6f4c7 100644
--- a/lib/html.js
+++ b/lib/html.js
@@ -23,7 +23,7 @@ const comicPage = ({ alt, title, transcript, num, img }) => {
     <a class="${btnClass}" href="../${pad(num + 1, 4)}/index.html">Next <span class="gray">→</span></a>
   </nav>
 
-  <img src="./${basename(img)}" title="${alt}">
+  <img src="./${basename(img)}" title="${alt.replace('"', '&quot;')}">
   <p class="dn">${escapeHtml(transcript)}</p>
   ${credits}
 </body>