diff --git a/addons/website_mass_mailing/views/snippets_templates.xml b/addons/website_mass_mailing/views/snippets_templates.xml
index b942cd68814..4b4deef3489 100644
--- a/addons/website_mass_mailing/views/snippets_templates.xml
+++ b/addons/website_mass_mailing/views/snippets_templates.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <odoo>
-<template id="iframe_css_assets_edit" name="CSS assets for wysiwyg iframe content for popup">
+<template id="iframe_css_assets_edit" name="CSS assets for wysiwyg iframe content for popup" groups="base.group_user">
     <t t-call-assets="web.assets_common" t-js="false"/>
     <t t-call-assets="web.assets_frontend" t-js="false"/>
     <t t-call-assets="web_editor.assets_wysiwyg" t-js="false"/>