diff --git a/src/OSPSuite.Utility/Events/ProgressUpdater.cs b/src/OSPSuite.Utility/Events/ProgressUpdater.cs
index 12b1725..ac8771c 100644
--- a/src/OSPSuite.Utility/Events/ProgressUpdater.cs
+++ b/src/OSPSuite.Utility/Events/ProgressUpdater.cs
@@ -77,8 +77,8 @@ public interface IProgressUpdater : IDisposable
    public class ProgressUpdater : IProgressUpdater
    {
       private readonly IEventPublisher _eventPublisher;
-      private int _numberOfIterations;
-      private int _currentIteration;
+      protected int _numberOfIterations;
+      protected int _currentIteration;
 
       public ProgressUpdater(IEventPublisher eventPublisher)
       {