diff --git a/library/include/mobilisis/configuration.h b/library/include/mobilisis/configuration.h
index a990dfb..16bbafa 100644
--- a/library/include/mobilisis/configuration.h
+++ b/library/include/mobilisis/configuration.h
@@ -39,6 +39,7 @@ public:
     using SpecialDaysType = std::multimap<int, ATBSpecialDays>;
     using SpecialDaysWorktimeType = std::multimap<int, ATBSpecialDaysWorktime>;
     using TimeRangeType = std::multimap<int, ATBTimeRange>;
+    using TariffProductType = std::multimap<int, ATBTariffProduct>;
 
     ATBProject project;
     ATBCurrency Currency;
@@ -58,7 +59,7 @@ public:
     multimap<int, ATBTimeStepConfig> TimeStepConfig;
     multimap<int, ATBTimeBase> TimeBase;
     multimap<int, ATBCustomer> Customer;
-    multimap<int, ATBTariffProduct> TariffProduct;
+    TariffProductType TariffProduct;
 
 	/// <summary>
 	/// Parse JSON string