diff --git a/program/js/app.js b/program/js/app.js
index cbda48a8d5..23095b93f4 100644
--- a/program/js/app.js
+++ b/program/js/app.js
@@ -4047,7 +4047,7 @@ function rcube_webmail() {
         if (action == 'show' || action == 'preview' || action == 'print') {
             // decrypt text body
             if (this.env.is_pgp_content) {
-                var data = $(this.env.is_pgp_content).text();
+                var data = document.querySelector(this.env.is_pgp_content).contentDocument.body.textContent;
                 ref.mailvelope_display_container(this.env.is_pgp_content, data, keyring);
             }
             // load pgp/mime message and pass it to the mailvelope display container