diff --git a/src/components/structures/HomePage.js b/src/components/structures/HomePage.js
index e1e700f21e..2311cc1f30 100644
--- a/src/components/structures/HomePage.js
+++ b/src/components/structures/HomePage.js
@@ -46,8 +46,8 @@ module.exports = React.createClass({
     translate: function(s) {
         s = sanitizeHtml(_t(s));
         // ugly fix for https://github.com/vector-im/riot-web/issues/4243
-        s = s.replace(/Riot\.im/, '<a href="https://riot.im target="_blank">Riot.im</a>');
-        s = s.replace(/\[matrix\]/, '<a href="https://matrix.org" target="_blank"><img width="79" height="34" alt="[matrix]" style="padding-left: 1px;vertical-align: middle" src="home/images/matrix.svg"/></a>');
+        s = s.replace(/Riot\.im/, '<a href="https://riot.im" target="_blank" rel="noopener">Riot.im</a>');
+        s = s.replace(/\[matrix\]/, '<a href="https://matrix.org" target="_blank" rel="noopener"><img width="79" height="34" alt="[matrix]" style="padding-left: 1px;vertical-align: middle" src="home/images/matrix.svg"/></a>');
         return s;
     },