1 files changed, 2 insertions, 2 deletions

diff --git a/src/ext/DifxApp/test/WixToolsetTest.DifxApp/DifxAppExtensionFixture.cs b/src/ext/DifxApp/test/WixToolsetTest.DifxApp/DifxAppExtensionFixture.cs
index d8f1c9ea..7bdd039b 100644
--- a/src/ext/DifxApp/test/WixToolsetTest.DifxApp/DifxAppExtensionFixture.cs
+++ b/src/ext/DifxApp/test/WixToolsetTest.DifxApp/DifxAppExtensionFixture.cs
@@ -3,8 +3,8 @@
 namespace WixToolsetTest.DifxApp
 {
     using System.Linq;
-    using WixBuildTools.TestSupport;
-    using WixToolset.Core.TestPackage;
+    using WixInternal.TestSupport;
+    using WixInternal.Core.TestPackage;
     using WixToolset.DifxApp;
     using Xunit;