diff --git a/src/sunstone/views/login.erb b/src/sunstone/views/login.erb
index 3ec8df7e67..41e90d1884 100644
--- a/src/sunstone/views/login.erb
+++ b/src/sunstone/views/login.erb
@@ -78,7 +78,7 @@
     </div>
 
     <div id="footer" style="overflow:visible;">
-      <a href="http://opennebula.io" target="_blank">OpenNebula <%= OpenNebula::VERSION %></a>
+      <a href="http://opennebula.io" target="_blank" rel="nofollow noopener noreferrer">OpenNebula <%= OpenNebula::VERSION %></a>
     </div>
   </body>
 </html>
\ No newline at end of file