diff --git a/VectoCore/VectoCore/Models/Declaration/DeclarationData.cs b/VectoCore/VectoCore/Models/Declaration/DeclarationData.cs
index fc492f1b7f664e82af82f3f173ddfed62efffea6..dd539a538d3f8f2c7ce70c8d29acf5b09b201a51 100644
--- a/VectoCore/VectoCore/Models/Declaration/DeclarationData.cs
+++ b/VectoCore/VectoCore/Models/Declaration/DeclarationData.cs
@@ -222,7 +222,7 @@ namespace TUGraz.VectoCore.Models.Declaration
 				case VectoSimulationJobType.ParallelHybridVehicle:
 				case VectoSimulationJobType.EngineOnlySimulation:
 				case VectoSimulationJobType.IHPC:
-					return vehicleData.Components.EngineInputData?.RatedPowerDeclared ?? 0.SI<Watt>() + vehicleData.MaxNetPower1 ?? 0.SI<Watt>();
+					return vehicleData.Components?.EngineInputData?.RatedPowerDeclared ?? 0.SI<Watt>() + vehicleData.MaxNetPower1 ?? 0.SI<Watt>();
 				case VectoSimulationJobType.SerialHybridVehicle:
 				case VectoSimulationJobType.BatteryElectricVehicle:
 				case VectoSimulationJobType.IEPC_E: