diff --git a/addons/website/static/src/js/editor/snippets.options.js b/addons/website/static/src/js/editor/snippets.options.js
index cb7bba8c7fd..c4342525c11 100644
--- a/addons/website/static/src/js/editor/snippets.options.js
+++ b/addons/website/static/src/js/editor/snippets.options.js
@@ -1671,6 +1671,7 @@ options.registry.collapse = options.Class.extend({
         var self = this;
         this.$target.on('shown.bs.collapse hidden.bs.collapse', '[role="tabpanel"]', function () {
             self.trigger_up('cover_update');
+            self.$target.trigger('content_changed');
         });
         return this._super.apply(this, arguments);
     },