diff --git a/plugins/enigma/enigma.js b/plugins/enigma/enigma.js
index decdb64cc..fe4b8c041 100644
--- a/plugins/enigma/enigma.js
+++ b/plugins/enigma/enigma.js
@@ -530,7 +530,7 @@ rcube_webmail.prototype.enigma_password_request = function(data)
     this.show_popup_dialog(myprompt, this.get_label('enigma.enterkeypasstitle'),
         [{
             text: this.get_label('save'),
-            'class': 'mainaction save',
+            'class': 'mainaction save unlock',
             click: function(e) {
                 e.stopPropagation();