diff --git a/addons/website_blog/static/src/js/website_blog.editor.js b/addons/website_blog/static/src/js/website_blog.editor.js
index 00225e8a8f4..e7fa3e8bcb1 100644
--- a/addons/website_blog/static/src/js/website_blog.editor.js
+++ b/addons/website_blog/static/src/js/website_blog.editor.js
@@ -31,6 +31,7 @@
         }),
         edit: function () {
             $('.popover').remove();
+            $('mark').contents().unwrap();
             this._super();
             var top_nav = _.isNull($('#website-top-navbar').height()) ? 0 : $('#website-top-navbar').height();
             var vHeight = $(window).height() - ($('header').height() + top_nav);