diff --git a/VectoCore/VectoCore/InputData/Reader/ShiftPolygonReader.cs b/VectoCore/VectoCore/InputData/Reader/ShiftPolygonReader.cs
index e67afeadee25cab31c337d8210b74aabe111e429..16d0b98001654e259a86b676e42d350badeaafb6 100644
--- a/VectoCore/VectoCore/InputData/Reader/ShiftPolygonReader.cs
+++ b/VectoCore/VectoCore/InputData/Reader/ShiftPolygonReader.cs
@@ -106,7 +106,7 @@ namespace TUGraz.VectoCore.InputData.Reader
 					}).ToList();
 		}
 
-		private static class Fields
+		public static class Fields
 		{
 			/// <summary>
 			///		[Nm] torque
diff --git a/VectoCore/VectoCore/Models/SimulationComponent/Data/Gearbox/TransmissionLossMap.cs b/VectoCore/VectoCore/Models/SimulationComponent/Data/Gearbox/TransmissionLossMap.cs
index 91c7fc84a5127d1c862d90905ec71ae0f8f18500..59dc78fcec9b10fae5b87c7b51dd535c329b3967 100644
--- a/VectoCore/VectoCore/Models/SimulationComponent/Data/Gearbox/TransmissionLossMap.cs
+++ b/VectoCore/VectoCore/Models/SimulationComponent/Data/Gearbox/TransmissionLossMap.cs
@@ -253,7 +253,7 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Data.Gearbox
 			}
 		}
 
-		private static class Fields
+		public static class Fields
 		{
 			/// <summary>[rpm]</summary>
 			public const string InputSpeed = "Input Speed";