diff --git a/registration_commerce.module b/registration_commerce.module
index 015132d..3419705 100644
--- a/registration_commerce.module
+++ b/registration_commerce.module
@@ -269,7 +269,7 @@ function registration_commerce_pay_access($registration) {
   else {
     $user_allowed_to_access = user_access('registration_commerce_pay_any_registration', $user);
   }
-  if ($user_allowed_to_access && !empty($settings['purchasable_states'][$registration->state]) && $registration_price['amount'] > 0) {
+  if ($user_allowed_to_access && !empty($settings['purchasable_states'][$registration->state]) && $registration_price['amount'] >= 0) {
     return TRUE;
   }