diff --git a/VectoCore/Models/SimulationComponent/Impl/Vehicle.cs b/VectoCore/Models/SimulationComponent/Impl/Vehicle.cs
index 8a2c851f0cb4eec3c6e63c76a705e00463aa6695..e0126f14d7fe3c0906de0d4a1673de2d69ec7288 100644
--- a/VectoCore/Models/SimulationComponent/Impl/Vehicle.cs
+++ b/VectoCore/Models/SimulationComponent/Impl/Vehicle.cs
@@ -201,7 +201,7 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
 			if (vAverage.IsEqual(0)) {
 				return 0.SI<Newton>();
 			}
-			var result = ComputeAirDragPowerLoss(PreviousState.Velocity, PreviousState.Velocity + acceleration * dt, dt) /
+			var result = ComputeAirDragPowerLoss(previousVelocity, previousVelocity + acceleration * dt, dt) /
 						vAverage;
 
 			Log.Debug("AirDragResistance: {0}", result);