diff --git a/headers/os/kernel/OS.h b/headers/os/kernel/OS.h
index 2a26df1a6a..7c4b41ebad 100644
--- a/headers/os/kernel/OS.h
+++ b/headers/os/kernel/OS.h
@@ -72,9 +72,8 @@ typedef struct area_info {
 #define	B_ANY_KERNEL_ADDRESS	4
 
 /* area protection */
-#define B_READ_AREA				0x01
-#define B_WRITE_AREA			0x02
-#define B_USER_CLONEABLE_AREA	0x04	// relevant for kernel areas only
+#define B_READ_AREA				1
+#define B_WRITE_AREA			2
 
 extern area_id	create_area(const char *name, void **start_addr, uint32 addr_spec,
 					size_t size, uint32 lock, uint32 protection);