diff --git a/test/SmokeTests/OOProcSmokeTests/DotNetIsolated/FaultyOrchestrators.cs b/test/SmokeTests/OOProcSmokeTests/DotNetIsolated/FaultyOrchestrators.cs
index e84afb87c..dd7327f94 100644
--- a/test/SmokeTests/OOProcSmokeTests/DotNetIsolated/FaultyOrchestrators.cs
+++ b/test/SmokeTests/OOProcSmokeTests/DotNetIsolated/FaultyOrchestrators.cs
@@ -61,8 +61,8 @@ public static Task ProcessExitOrchestrator(
             // on the very first replay, OOM the process
             if (isTheFirstReplay)
             {
-                // force the process to suddenly exit
-                Environment.FailFast("Fail Fast!");
+                // simulate out of memory
+                throw new OutOfMemoryException();
             }
             
             // assuming the orchestrator survived the OOM, delete the evidence file and return