diff --git a/VectoCore/VectoCoreTest/TestData/Integration/Buses/FactorMethod/vecto_vehicle-completed_heavyBus_41.xml b/VectoCore/VectoCoreTest/TestData/Integration/Buses/FactorMethod/vecto_vehicle-completed_heavyBus_41.xml
index 95cf175667d01c6c17614c00c3e49ddafcd1b2c2..c9db0481c519a1fab72f7b3ce821c71351e5c0e3 100644
--- a/VectoCore/VectoCoreTest/TestData/Integration/Buses/FactorMethod/vecto_vehicle-completed_heavyBus_41.xml
+++ b/VectoCore/VectoCoreTest/TestData/Integration/Buses/FactorMethod/vecto_vehicle-completed_heavyBus_41.xml
@@ -16,7 +16,7 @@ xsi:schemaLocation="urn:tugraz:ivt:VectoAPI:DeclarationJob v:\VectoCore\VectoCor
 		<LegislativeCategory>M3</LegislativeCategory>
 		<CorrectedActualMass>8300</CorrectedActualMass>
 		<TechnicalPermissibleMaximumLadenMass>18000</TechnicalPermissibleMaximumLadenMass>
-		<AirdragModifiedMultistage>false</AirdragModifiedMultistage>
+		<AirdragModifiedMultistage>true</AirdragModifiedMultistage>
 		<NgTankSystem>Compressed</NgTankSystem>
 		<ClassBus>II+III</ClassBus>
 		<NumberPassengerSeatsLowerDeck>30</NumberPassengerSeatsLowerDeck>