diff --git a/VectoCore/VectoCore/Models/SimulationComponent/VectoSimulationComponent.cs b/VectoCore/VectoCore/Models/SimulationComponent/VectoSimulationComponent.cs
index 311bed045e6e889a4c59e6f65699afd10b282d3d..20cef18b86729a4bc145d9a7d53b5c037a3b6a7e 100644
--- a/VectoCore/VectoCore/Models/SimulationComponent/VectoSimulationComponent.cs
+++ b/VectoCore/VectoCore/Models/SimulationComponent/VectoSimulationComponent.cs
@@ -43,7 +43,7 @@ namespace TUGraz.VectoCore.Models.SimulationComponent
 	/// </summary>
 	public abstract class VectoSimulationComponent : LoggingObject
 	{
-		[NonSerialized] protected IDataBus DataBus;
+		[NonSerialized] protected readonly IDataBus DataBus;
 
 		/// <summary>
 		/// Constructor. Registers the component in the cockpit.