diff --git a/Tests/CTestTest/test.cmake.in b/Tests/CTestTest/test.cmake.in
index 577c94d3b..3fc859fd4 100644
--- a/Tests/CTestTest/test.cmake.in
+++ b/Tests/CTestTest/test.cmake.in
@@ -34,7 +34,7 @@ SET (CTEST_START_WITH_EMPTY_BINARY_DIRECTORY TRUE)
 # any quotes inside of this string if you use it
 SET (CTEST_INITIAL_CACHE "
 SITE:STRING=@SITE@
-BUILDNAME:STRING=@BUILDNAME@
+BUILDNAME:STRING=@BUILDNAME@-KWSys
 CMAKE_GENERATOR:INTERNAL=@CMAKE_GENERATOR@
 CMAKE_CXX_FLAGS:STRING=@CMAKE_CXX_FLAGS@
 CMAKE_C_FLAGS:STRING=@CMAKE_C_FLAGS@