diff --git a/Source/CMakeLists.txt b/Source/CMakeLists.txt
index ebeda5679..3f8a27e47 100644
--- a/Source/CMakeLists.txt
+++ b/Source/CMakeLists.txt
@@ -383,7 +383,8 @@ IF(CMAKE_ENABLE_NINJA)
     cmNinjaUtilityTargetGenerator.h
     )
   ADD_DEFINITIONS(-DCMAKE_USE_NINJA)
-  IF(MSVC) # TODO WIN32
+  IF(WIN32)
+    SET_SOURCE_FILES_PROPERTIES(cmcldeps.cxx PROPERTIES COMPILE_DEFINITIONS _WIN32_WINNT=0x0501)
     ADD_EXECUTABLE(cmcldeps cmcldeps.cxx)
     INSTALL_TARGETS(/bin cmcldeps)
   ENDIF()