diff --git a/library/include/mobilisis/payment_opt.h b/library/include/mobilisis/payment_opt.h
index a8a7a67..b5751ae 100644
--- a/library/include/mobilisis/payment_opt.h
+++ b/library/include/mobilisis/payment_opt.h
@@ -1,5 +1,9 @@
-#pragma once
+#ifndef PAYMENT_OPT_H_INCLUDED
+#define PAYMENT_OPT_H_INCLUDED
+
+
 #include <string>
+#include <cinttypes>
 
 class ATBPaymentOption
 {
@@ -37,6 +41,8 @@ public:
     int pop_carry_over;
     int pop_carry_over_time_range_id;
     int pop_daily_card_price;
-    int pop_business_hours;
+    uint64_t pop_business_hours;
     int pop_time_step_config;
 };
+
+#endif // PAYMENT_OPT_H_INCLUDED