diff --git a/headers/posix/fts.h b/headers/posix/fts.h
index 53e900d3c3..2f3780b715 100644
--- a/headers/posix/fts.h
+++ b/headers/posix/fts.h
@@ -54,6 +54,9 @@ typedef struct {
 #define	FTS_PHYSICAL	0x010		/* physical walk */
 #define	FTS_SEEDOT	0x020		/* return dot and dot-dot */
 #define	FTS_XDEV	0x040		/* don't cross devices */
+#if !defined(__HAIKU__)
+#define	FTS_WHITEOUT	0x080		/* return whiteout information */
+#endif
 #define	FTS_OPTIONMASK	0x0ff		/* valid user option mask */
 
 #define	FTS_NAMEONLY	0x100		/* (private) child names only */