diff --git a/Rx.NET/Source/Tests.System.Reactive/Tests/Linq/Subjects/ReplaySubjectTest.cs b/Rx.NET/Source/Tests.System.Reactive/Tests/Linq/Subjects/ReplaySubjectTest.cs
index 7537e30499..e65e5d4543 100644
--- a/Rx.NET/Source/Tests.System.Reactive/Tests/Linq/Subjects/ReplaySubjectTest.cs
+++ b/Rx.NET/Source/Tests.System.Reactive/Tests/Linq/Subjects/ReplaySubjectTest.cs
@@ -100,6 +100,7 @@ public void Infinite_ReplayByTime()
 
             scheduler.ScheduleAbsolute(600, () => subscription1.Dispose());
             scheduler.ScheduleAbsolute(700, () => subscription2.Dispose());
+            scheduler.ScheduleAbsolute(800, () => subscription1.Dispose());
             scheduler.ScheduleAbsolute(950, () => subscription3.Dispose());
 
             scheduler.Start();
@@ -170,6 +171,7 @@ public void Infinite_ReplayOne()
 
             scheduler.ScheduleAbsolute(600, () => subscription1.Dispose());
             scheduler.ScheduleAbsolute(700, () => subscription2.Dispose());
+            scheduler.ScheduleAbsolute(800, () => subscription1.Dispose());
             scheduler.ScheduleAbsolute(950, () => subscription3.Dispose());
 
             scheduler.Start();
@@ -239,6 +241,7 @@ public void Infinite_ReplayMany()
 
             scheduler.ScheduleAbsolute(600, () => subscription1.Dispose());
             scheduler.ScheduleAbsolute(700, () => subscription2.Dispose());
+            scheduler.ScheduleAbsolute(800, () => subscription1.Dispose());
             scheduler.ScheduleAbsolute(950, () => subscription3.Dispose());
 
             scheduler.Start();