diff --git a/library/include/mobilisis/tariff_prepaid.h b/library/include/mobilisis/tariff_prepaid.h
index 326cb4d..9381855 100644
--- a/library/include/mobilisis/tariff_prepaid.h
+++ b/library/include/mobilisis/tariff_prepaid.h
@@ -4,6 +4,8 @@
 #include <QTime>
 #include <QString>
 
+#include "atb_time.h"
+
 struct ATBPrepaid {
     int id;
     bool anytime;