diff --git a/include/linux/byteorder/big_endian.h b/include/linux/byteorder/big_endian.h
index ebd81c0..19b0c86 100644
--- a/include/linux/byteorder/big_endian.h
+++ b/include/linux/byteorder/big_endian.h
@@ -7,6 +7,7 @@
 #ifndef __BIG_ENDIAN_BITFIELD
 #define __BIG_ENDIAN_BITFIELD
 #endif
+#define	__BYTE_ORDER	__BIG_ENDIAN
 
 #include <linux/byteorder/swab.h>
 
diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h
index 1431663..a46f3ec 100644
--- a/include/linux/byteorder/little_endian.h
+++ b/include/linux/byteorder/little_endian.h
@@ -7,6 +7,7 @@
 #ifndef __LITTLE_ENDIAN_BITFIELD
 #define __LITTLE_ENDIAN_BITFIELD
 #endif
+#define	__BYTE_ORDER	__LITTLE_ENDIAN
 
 #include <linux/byteorder/swab.h>