diff --git a/src/tests/JIT/opt/Multiply/MultiplyLongOps.csproj b/src/tests/JIT/opt/Multiply/MultiplyLongOps.csproj
index dbc3ab7f2f959..a39ddd53ff10c 100644
--- a/src/tests/JIT/opt/Multiply/MultiplyLongOps.csproj
+++ b/src/tests/JIT/opt/Multiply/MultiplyLongOps.csproj
@@ -14,5 +14,6 @@
 
     <CLRTestEnvironmentVariable Include="DOTNET_TieredCompilation" Value="0" />
     <CLRTestEnvironmentVariable Include="DOTNET_JITMinOpts" Value="0" />
+    <CLRTestEnvironmentVariable Include="DOTNET_EnableHWIntrinsic" Value="1" />
   </ItemGroup>
 </Project>