diff --git a/booking.admin.inc b/booking.admin.inc
index bdd5577..560abfe 100644
--- a/booking.admin.inc
+++ b/booking.admin.inc
@@ -607,7 +607,7 @@ function booking_admin() {
   $form['regn_options']['booking_require_freestyle'] = array(
     '#type' => 'radios',
     '#title' => t('Require attendees to enter some freestyle text?'),
-    '#description' => t('Select whether to require attendees to enter some freestyle text when they register.'),
+    '#description' => t('Select whether to require attendees to enter some freestyle text when they register. Doesn\t have any effect if freestyle text is not enabled above.'),
     '#options' => array(
       0 => t('No'),
       t('Yes')