diff --git a/VectoCore/VectoCore/OutputData/FileIO/JSONFileWriter.cs b/VectoCore/VectoCore/OutputData/FileIO/JSONFileWriter.cs
index 3bbf6ce5f2292a137ebde0fb73bf7994d0d5a989..71d6531b07501b00ddd47fe9f87405db6ef3c302 100644
--- a/VectoCore/VectoCore/OutputData/FileIO/JSONFileWriter.cs
+++ b/VectoCore/VectoCore/OutputData/FileIO/JSONFileWriter.cs
@@ -665,7 +665,7 @@ public class JSONFileWriter : IOutputFileWriter
 			body.Add("Padd", aux.Auxiliaries.ConstantPowerDemand.Value());
 			body.Add("Paux_ICEOff_Driving", aux.Auxiliaries.PowerDemandICEOffDriving.Value());
 			body.Add("Paux_ICEOff_Standstill", aux.Auxiliaries.PowerDemandICEOffStandstill.Value());
-			body.Add("Padd_electric", aux.Auxiliaries.ElectricPowerDemand);
+			body.Add("Padd_electric", aux.Auxiliaries.ElectricPowerDemand.Value());
 		}
 
 		var driver = input.DriverInputData;