diff --git a/booking.regn_form.inc b/booking.regn_form.inc
index 8d39b20..8546711 100644
--- a/booking.regn_form.inc
+++ b/booking.regn_form.inc
@@ -1054,11 +1054,11 @@ function booking_form_validate($form, &$form_state) {
 
   //validate guardian phone number
   if ($data['booking_country'] == 'Australia') {
-    if (!_valid_australian_mobile_number($data['booking_guardian_phone']) {
+    if (!_valid_australian_mobile_number($data['booking_guardian_phone'])) {
       form_set_error('booking_guardian_phone', t('You have entered an invalid contact phone number for your emergency contact.'));
     }
   } else {
-    if (!_valid_phone_number($data['booking_guardian_phone']) {
+    if (!_valid_phone_number($data['booking_guardian_phone'])) {
       form_set_error('booking_guardian_phone', t('You have entered an invalid contact phone number for your emergency contact.'));
     }
   }