diff --git a/layouts/index.html b/layouts/index.html
index c31d20d..dd7a96f 100644
--- a/layouts/index.html
+++ b/layouts/index.html
@@ -1229,6 +1229,7 @@ <h3 id="signed-by">{{ T "topic08p06" | safeHTML}}</h3>
       <li>KolaGayathri Pillai, CEO, Sattva Solutions, LLC</li>
       <li>Craig Barrios, Web Development Enthusiast</li>
       <li>Eduardo Gonçalves Pereira, Software Developer</li>
+      <li>Ingo Köpp, Software Developer at sipgate GmbH</li>
       <li>Björn Witte, UX Design at sipgate GmbH</li>
     </ol>
     <p>