diff --git a/src/Microsoft.AspNetCore.Server.Testing/Common/ApplicationType.cs b/src/Microsoft.AspNetCore.Server.Testing/Common/ApplicationType.cs
new file mode 100644
index 0000000000..a6b7e7942c
--- /dev/null
+++ b/src/Microsoft.AspNetCore.Server.Testing/Common/ApplicationType.cs
@@ -0,0 +1,11 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+namespace Microsoft.AspNetCore.Server.Testing
+{
+    public enum ApplicationType
+    {
+        Portable,
+        Standalone
+    }
+}
diff --git a/src/Microsoft.AspNetCore.Server.Testing/Common/DeploymentParameters.cs b/src/Microsoft.AspNetCore.Server.Testing/Common/DeploymentParameters.cs
index 9150e71f73..3f9af859a8 100644
--- a/src/Microsoft.AspNetCore.Server.Testing/Common/DeploymentParameters.cs
+++ b/src/Microsoft.AspNetCore.Server.Testing/Common/DeploymentParameters.cs
@@ -74,6 +74,8 @@ namespace Microsoft.AspNetCore.Server.Testing
         /// </summary>
         public bool PublishApplicationBeforeDeployment { get; set; }
 
+        public ApplicationType ApplicationType { get; set; }
+
         public string PublishTargetFramework { get; set; }
 
         public string PublishedApplicationRootPath { get; set; }
diff --git a/src/Microsoft.AspNetCore.Server.Testing/Deployers/SelfHostDeployer.cs b/src/Microsoft.AspNetCore.Server.Testing/Deployers/SelfHostDeployer.cs
index 8a43604e3a..210a61cf83 100644
--- a/src/Microsoft.AspNetCore.Server.Testing/Deployers/SelfHostDeployer.cs
+++ b/src/Microsoft.AspNetCore.Server.Testing/Deployers/SelfHostDeployer.cs
@@ -52,7 +52,9 @@ namespace Microsoft.AspNetCore.Server.Testing
             string executableArgs = string.Empty;
             if (DeploymentParameters.PublishApplicationBeforeDeployment)
             {
-                var executableExtension = DeploymentParameters.RuntimeFlavor == RuntimeFlavor.Clr ? ".exe" : "";
+                var executableExtension =
+                    DeploymentParameters.RuntimeFlavor == RuntimeFlavor.Clr ? ".exe" :
+                    DeploymentParameters.ApplicationType == ApplicationType.Portable ? ".dll" : "";
                 var executable = Path.Combine(DeploymentParameters.PublishedApplicationRootPath, new DirectoryInfo(DeploymentParameters.ApplicationPath).Name + executableExtension);
                 
                 if (DeploymentParameters.RuntimeFlavor == RuntimeFlavor.Clr && PlatformServices.Default.Runtime.OperatingSystemPlatform != Platform.Windows)
@@ -60,6 +62,11 @@ namespace Microsoft.AspNetCore.Server.Testing
                     executableName = "mono";
                     executableArgs = executable;
                 }
+                else if (DeploymentParameters.RuntimeFlavor == RuntimeFlavor.CoreClr && DeploymentParameters.ApplicationType == ApplicationType.Portable)
+                {
+                    executableName = "dotnet";
+                    executableArgs = executable;
+                }
                 else
                 {
                     executableName = executable;