diff --git a/booking.variety_admin.inc b/booking.variety_admin.inc
index 6fcb0a3..4341873 100644
--- a/booking.variety_admin.inc
+++ b/booking.variety_admin.inc
@@ -759,7 +759,7 @@ function booking_variety_regn_edit_form_submit($form, &$form_state) {
 	elseif ($form_state['values']['op'] == 'Update Session Registration') {
     // Get the previous variety session IDs and compare them
     $person = db_query("SELECT * FROM {booking_person_view} WHERE nid = :nid",
-      array(':nid' => $nid))->fetchObject();    
+      array(':nid' => $values['nid']))->fetchObject();    
     $previous_variety_ids = drupal_json_decode($person->booking_variety_ids);
 
     foreach ($previous_variety_ids as $previous_tid => $previous_sid) {