diff --git a/booking.emails_admin.inc b/booking.emails_admin.inc
index 473ce82..3b430c3 100644
--- a/booking.emails_admin.inc
+++ b/booking.emails_admin.inc
@@ -281,10 +281,11 @@ function booking_emails_custom_ajax_form($node, &$form_state) {
     $submit_button_disabled = FALSE;
   }
   else {
+    watchdog('booking_debug', 'booking_emails_custom_ajax_form user has selected email type');
     $emailtype = $form_state['input']['email-type'];
     $subject_value = $form_state['input']['booking_email_subjectline_custom'];
     $body_value = $form_state['input']['booking_email_body_custom']['value']; 
-    $submit_button_disabled = FALSE;
+    $submit_button_disabled = TRUE;
   }  
 
   if(variable_get('booking_enable_html_mail', 0) == 1) {