diff --git a/src/coreclr/tools/r2rtest/Crossgen2Runner.cs b/src/coreclr/tools/r2rtest/Crossgen2Runner.cs
index 2aa1dee6b6f6d0..d903ff4e2b0ab1 100644
--- a/src/coreclr/tools/r2rtest/Crossgen2Runner.cs
+++ b/src/coreclr/tools/r2rtest/Crossgen2Runner.cs
@@ -65,6 +65,10 @@ public override ProcessParameters CompilationProcess(string outputFileName, IEnu
         {
             ProcessParameters processParameters = base.CompilationProcess(outputFileName, inputAssemblyFileNames);
             processParameters.Arguments = $"{Crossgen2Path} {processParameters.Arguments}";
+            processParameters.EnvironmentOverrides["COMPlus_GCStress"] = "";
+            processParameters.EnvironmentOverrides["COMPlus_HeapVerify"] = "";
+            processParameters.EnvironmentOverrides["COMPlus_ReadyToRun"] = "";
+            processParameters.EnvironmentOverrides["COMPlus_GCName"] = "";
             return processParameters;
         }
 
diff --git a/src/tests/Common/CLRTest.CrossGen.targets b/src/tests/Common/CLRTest.CrossGen.targets
index 3590d4e4affea0..6075c74b6d297c 100644
--- a/src/tests/Common/CLRTest.CrossGen.targets
+++ b/src/tests/Common/CLRTest.CrossGen.targets
@@ -87,9 +87,9 @@ if [ ! -z ${RunCrossGen2+x} ]%3B then
         local heapVerifyModeToRestore=$COMPlus_HeapVerify;
         local readyToRunModeToRestore=$COMPlus_ReadyToRun;
         local gcstandaloneModeToRestore=$COMPlus_GCName;
-        export COMPlus_GCStress=
-        export COMPlus_HeapVerify=
-        export COMPlus_ReadyToRun=
+        unset COMPlus_GCStress
+        unset COMPlus_HeapVerify
+        unset COMPlus_ReadyToRun
         unset COMPlus_GCName
 
         __Command=$_DebuggerFullPath