diff --git a/plugins/CoreAdminHome/templates/generalSettings.twig b/plugins/CoreAdminHome/templates/generalSettings.twig
index 04bbf7b69811c944867c1d78fea3af1164a9b4e5..6980863638b231a02501775c3a7ee5d556de02cf 100644
--- a/plugins/CoreAdminHome/templates/generalSettings.twig
+++ b/plugins/CoreAdminHome/templates/generalSettings.twig
@@ -257,7 +257,7 @@
     {% set iframeOptOut %}
         <iframe style="border: 0; height: 200px; width: 600px;" src="{{ optOutUrl }}"></iframe>
     {% endset %}
-    <code>{{ iframeOptOut }}</code>
+    <code>{{ iframeOptOut|escape }}</code>
     <br/>
     {{ 'CoreAdminHome_OptOutExplanationBis'|translate("<a href='" ~ optOutUrl ~ "' target='_blank'>","</a>")|raw }}
 </p>