diff --git a/src/ZB.MOM.WW.MxGateway.Worker.Tests/TestSupport/FakeRuntimeSession.cs b/src/ZB.MOM.WW.MxGateway.Worker.Tests/TestSupport/FakeRuntimeSession.cs
index 0f89658..456205d 100644
--- a/src/ZB.MOM.WW.MxGateway.Worker.Tests/TestSupport/FakeRuntimeSession.cs
+++ b/src/ZB.MOM.WW.MxGateway.Worker.Tests/TestSupport/FakeRuntimeSession.cs
@@ -42,6 +42,7 @@ internal sealed class FakeRuntimeSession : IWorkerRuntimeSession
     // disposed SemaphoreSlim would turn that shutdown into an ObjectDisposedException.
     private readonly SemaphoreSlim eventSignal = new(0, 1);
     private TimeSpan? lastWaitForEventsTimeout;
+    private bool refreshStaActivityOnCapture;
     private WorkerRuntimeHeartbeatSnapshot snapshot = new(
         DateTimeOffset.UtcNow,
         pendingCommandCount: 0,
@@ -138,8 +139,6 @@ internal sealed class FakeRuntimeSession : IWorkerRuntimeSession
             });
     }
 
-    private bool refreshStaActivityOnCapture;
-
     /// <summary>
     ///     When set, <see cref="CaptureHeartbeat"/> stamps the snapshot's
     ///     <c>LastStaActivityUtc</c> with the capture time and leaves every other field as the last