diff --git a/arch/nios2/include/asm/byteorder.h b/arch/nios2/include/asm/byteorder.h
index 495c823..d5c152e 100644
--- a/arch/nios2/include/asm/byteorder.h
+++ b/arch/nios2/include/asm/byteorder.h
@@ -25,6 +25,12 @@
 #define __ASM_NIOS2_BYTEORDER_H_
 
 #include <asm/types.h>
+
+#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+#  define __BYTEORDER_HAS_U64__
+#  define __SWAB_64_THRU_32__
+#endif
+
 #include <linux/byteorder/little_endian.h>
 
 #endif /* __ASM_NIOS2_BYTEORDER_H_ */