diff --git a/calculate_parking_tickets/calculate_parking_tickets_algorithms.cpp b/calculate_parking_tickets/calculate_parking_tickets_algorithms.cpp
index 2fa17d2..19726c5 100644
--- a/calculate_parking_tickets/calculate_parking_tickets_algorithms.cpp
+++ b/calculate_parking_tickets/calculate_parking_tickets_algorithms.cpp
@@ -77,10 +77,10 @@ static bool checkCalculatePreConditions(parking_tariff_t const* tariff,
         return false;
     }
 
-    if (tariff->max_parking_time != -1) {
-        if (parkingTime > tariff->max_parking_time) {
+    if (tariff->parking_time_max != -1) {
+        if (parkingTime > tariff->parking_time_max) {
             qCritical() << "parkingTime" << parkingTime
-                        << ">" << tariff->max_parking_time;
+                        << ">" << tariff->parking_time_max;
             return false;
         }
     }
@@ -286,7 +286,7 @@ bool compute_duration_for_parking_ticket(parking_tariff_t const *tariff,
                                          minute_t *end_parking_time,
                                          struct price_t const *price) {
     price_t p;
-    for (int i = 0; i < tariff->max_parking_time; ++i) {
+    for (int i = 0; i < tariff->parking_time_max; ++i) {
         minute_t end_time = start_parking_time + i;
         if (compute_price_for_parking_ticket(tariff, start_parking_time,
                                              end_time, &p)) {