1 files changed, 5 insertions, 1 deletions

diff --git a/src/ext/UI/test/WixToolsetTest.UI/UIExtensionFixture.cs b/src/ext/UI/test/WixToolsetTest.UI/UIExtensionFixture.cs
index e06feac7..9bc82fcf 100644
--- a/src/ext/UI/test/WixToolsetTest.UI/UIExtensionFixture.cs
+++ b/src/ext/UI/test/WixToolsetTest.UI/UIExtensionFixture.cs
@@ -1,5 +1,9 @@
 // Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
 
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+[assembly: Parallelize(Scope = ExecutionScope.MethodLevel)]
+
 namespace WixToolsetTest.UI
 {
     using System.IO;
@@ -109,7 +113,7 @@ namespace WixToolsetTest.UI
             var bindFolder = TestData.Get(@"TestData", "data");
             var build = new Builder(folder, typeof(UIExtensionFactory), new[] { bindFolder });
 
-            var results = build.BuildAndQuery(BuildX64, "Binary", "Dialog", "CustomAction", "ControlEvent", "InstallUISequence");
+            var results = build.BuildAndQuery(Build, validate: true, "Binary", "Dialog", "CustomAction", "ControlEvent", "InstallUISequence");
             WixAssert.Single(results, result => result.StartsWith("Dialog:WelcomeDlg\t"));
             WixAssert.Single(results, result => result.StartsWith("Dialog:CustomizeDlg\t"));
             WixAssert.Empty(results.Where(result => result.StartsWith("Dialog:SetupTypeDlg\t")));