diff --git a/booking.emails_admin.inc b/booking.emails_admin.inc
index d573456..2f0f98e 100644
--- a/booking.emails_admin.inc
+++ b/booking.emails_admin.inc
@@ -259,6 +259,7 @@ function booking_emails_custom_ajax_form($node, &$form_state) {
   $form = array();
   $email_options_array = array();
   $data = $node;  
+  $submit_button_disabled = TRUE;
 
   //$email_options_array = _booking_custom_email_types();
   $email_options_array['NULL'] = "---";