diff --git a/Core/FileSystems/DirectoryFileSystem.h b/Core/FileSystems/DirectoryFileSystem.h
index 2de2ff9e2e..e3f4bf0acc 100644
--- a/Core/FileSystems/DirectoryFileSystem.h
+++ b/Core/FileSystems/DirectoryFileSystem.h
@@ -31,20 +31,20 @@ typedef void * HANDLE;
 #if defined(__APPLE__)
 
 #if TARGET_OS_IPHONE
-#define HOST_IS_CASE_SENSITIVE true
+#define HOST_IS_CASE_SENSITIVE 1
 #elif TARGET_IPHONE_SIMULATOR
-#define HOST_IS_CASE_SENSITIVE false
+#define HOST_IS_CASE_SENSITIVE 0
 #else
 // Mac OSX case sensitivity defaults off, but is user configurable (when
 // creating a filesytem), so assume the worst:
-#define HOST_IS_CASE_SENSITIVE true
+#define HOST_IS_CASE_SENSITIVE 1
 #endif
 
 #elif defined(_WIN32) || defined(__SYMBIAN32__)
-#define HOST_IS_CASE_SENSITIVE false
+#define HOST_IS_CASE_SENSITIVE 0
 
 #else  // Android, Linux, BSD (and the rest?)
-#define HOST_IS_CASE_SENSITIVE true
+#define HOST_IS_CASE_SENSITIVE 1
 
 #endif