diff --git a/src/Microsoft.AspNetCore.Server.IntegrationTesting/Deployers/IISExpressDeployer.cs b/src/Microsoft.AspNetCore.Server.IntegrationTesting/Deployers/IISExpressDeployer.cs
index 178764ef91..7690c48d0f 100644
--- a/src/Microsoft.AspNetCore.Server.IntegrationTesting/Deployers/IISExpressDeployer.cs
+++ b/src/Microsoft.AspNetCore.Server.IntegrationTesting/Deployers/IISExpressDeployer.cs
@@ -47,8 +47,7 @@ namespace Microsoft.AspNetCore.Server.IntegrationTesting
         {
             get
             {
-                return RuntimeInformation.OSArchitecture == Architecture.X64
-                    || RuntimeInformation.OSArchitecture == Architecture.Arm64;
+                return Environment.Is64BitOperatingSystem;
             }
         }