diff --git a/src/ZB.MOM.WW.MxGateway.Worker.Tests/Sta/StaRuntimeTests.cs b/src/ZB.MOM.WW.MxGateway.Worker.Tests/Sta/StaRuntimeTests.cs
index f76ab9c..e1b0ceb 100644
--- a/src/ZB.MOM.WW.MxGateway.Worker.Tests/Sta/StaRuntimeTests.cs
+++ b/src/ZB.MOM.WW.MxGateway.Worker.Tests/Sta/StaRuntimeTests.cs
@@ -2,6 +2,7 @@ using System;
 using System.Threading;
 using System.Threading.Tasks;
 using ZB.MOM.WW.MxGateway.Worker.Sta;
+using ZB.MOM.WW.MxGateway.Worker.Tests.TestSupport;
 
 namespace ZB.MOM.WW.MxGateway.Worker.Tests.Sta;