diff --git a/core/build.h b/core/build.h
index 14f4cd2dd..1b30a736e 100755
--- a/core/build.h
+++ b/core/build.h
@@ -315,7 +315,7 @@
 
 // Compiler Related
 
-#define COMPILER_VC_OR_CLANG_WIN32 ((BUILD_COMPILER == COMPILER_VC) || (BUILD_COMPILER == COMPILER_CLANG) && defined(WIN32))
+#define COMPILER_VC_OR_CLANG_WIN32 ((BUILD_COMPILER == COMPILER_VC) || (BUILD_COMPILER == COMPILER_CLANG) && HOST_OS == OS_WINDOWS)
 
 #if BUILD_COMPILER!=COMPILER_VC
 #define ATTR_USED   __attribute__((used))