diff --git a/source/simulation2/tests/test_Simulation2.h b/source/simulation2/tests/test_Simulation2.h
index d2dcbf88dc..07f8dabad3 100644
--- a/source/simulation2/tests/test_Simulation2.h
+++ b/source/simulation2/tests/test_Simulation2.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2017 Wildfire Games.
+/* Copyright (C) 2019 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -107,6 +107,10 @@ public:
 
 		sim.FlushDestroyedEntities(); // nothing in the queue
 
+		// Allow destroying INVALID_ENTITY which should do nothing.
+		sim.DestroyEntity(INVALID_ENTITY);
+		sim.FlushDestroyedEntities();
+
 		sim.DestroyEntity(ent2);
 		sim.FlushDestroyedEntities(); // already deleted