1 files changed, 1 insertions, 1 deletions

diff --git a/src/test/DUtilUnitTest/GuidUtilTest.cpp b/src/test/DUtilUnitTest/GuidUtilTest.cpp
index d0ea9a89..a6e27a09 100644
--- a/src/test/DUtilUnitTest/GuidUtilTest.cpp
+++ b/src/test/DUtilUnitTest/GuidUtilTest.cpp
@@ -4,7 +4,7 @@
 
 using namespace System;
 using namespace Xunit;
-using namespace WixTest;
+using namespace WixBuildTools::TestSupport;
 
 namespace DutilTests
 {