diff --git a/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/DataProvider/XMLDeclarationBusAuxiliariesDataProvider.cs b/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/DataProvider/XMLDeclarationBusAuxiliariesDataProvider.cs
index 82825ff2d4407648d64bc2b44e8420a1a1e85abb..32d39c88d25951d9d022e0b2126b8644afd40791 100644
--- a/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/DataProvider/XMLDeclarationBusAuxiliariesDataProvider.cs
+++ b/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/DataProvider/XMLDeclarationBusAuxiliariesDataProvider.cs
@@ -415,8 +415,12 @@ namespace TUGraz.VectoCore.InputData.FileIO.XML.Declaration.DataProvider
 
 		public override bool EngineWasteGasHeatExchanger => false;
 
-		#endregion
-	}
+		public override string CompressorSize => null;
+
+		public override string Clutch => null;
+
+        #endregion
+    }
 
 	// ---------------------------------------------------------------------------------------
 
@@ -443,8 +447,12 @@ namespace TUGraz.VectoCore.InputData.FileIO.XML.Declaration.DataProvider
 
 		public override bool EngineWasteGasHeatExchanger => false;
 
-		#endregion
-	}
+		public override string CompressorSize => null;
+
+		public override string Clutch => null;
+
+        #endregion
+    }
 
 	// ---------------------------------------------------------------------------------------