diff --git a/src/Arc4u.Standard.UnitTest/Infrastructure/ContainerFixture.cs b/src/Arc4u.Standard.UnitTest/Infrastructure/ContainerFixture.cs
index 5fd4cf14..f095d5ae 100644
--- a/src/Arc4u.Standard.UnitTest/Infrastructure/ContainerFixture.cs
+++ b/src/Arc4u.Standard.UnitTest/Infrastructure/ContainerFixture.cs
@@ -67,7 +67,7 @@ public virtual AppPrincipal GetPrincipal()
 
             authorization.AllOperations.Add(new Operation { ID = 1, Name = "AccessApplication" });
 
-            return new AppPrincipal(authorization, new GenericIdentity("TestUser"), "S-1-9-5-100") { ActivityID = Guid.NewGuid().ToString() };
+            return new AppPrincipal(authorization, new GenericIdentity("TestUser"), "S-1-9-5-100");
 
         }