diff --git a/drivers/scsi/aic7xxx/aicasm/aicasm.c b/drivers/scsi/aic7xxx/aicasm/aicasm.c
index c34639481904bf9e023992c295db5fe88b26909c..f936b691232f90d4d020998d8a3420508b36cc85 100644
--- a/drivers/scsi/aic7xxx/aicasm/aicasm.c
+++ b/drivers/scsi/aic7xxx/aicasm/aicasm.c
@@ -369,7 +369,7 @@ output_code()
 
 		fprintf(ofile, "%s\t0x%02x, 0x%02x, 0x%02x, 0x%02x",
 			cur_instr == STAILQ_FIRST(&seq_program) ? "" : ",\n",
-#if BYTE_ORDER == LITTLE_ENDIAN
+#ifdef __LITTLE_ENDIAN
 			cur_instr->format.bytes[0],
 			cur_instr->format.bytes[1],
 			cur_instr->format.bytes[2],
@@ -613,7 +613,7 @@ output_listing(char *ifilename)
 				line++;
 		}
 		fprintf(listfile, "%03x %02x%02x%02x%02x", instrptr,
-#if BYTE_ORDER == LITTLE_ENDIAN
+#ifdef __LITTLE_ENDIAN
 			cur_instr->format.bytes[0],
 			cur_instr->format.bytes[1],
 			cur_instr->format.bytes[2],
diff --git a/drivers/scsi/aic7xxx/aicasm/aicasm_insformat.h b/drivers/scsi/aic7xxx/aicasm/aicasm_insformat.h
index 3e80f07df49c5a4a3902a516272ea35842a53adf..e64f802bbaaa165884bafc117082eab38c23f701 100644
--- a/drivers/scsi/aic7xxx/aicasm/aicasm_insformat.h
+++ b/drivers/scsi/aic7xxx/aicasm/aicasm_insformat.h
@@ -42,8 +42,10 @@
  * $FreeBSD$
  */
 
+#include <asm/byteorder.h>
+
 struct ins_format1 {
-#if BYTE_ORDER == LITTLE_ENDIAN
+#ifdef __LITTLE_ENDIAN
 	uint32_t	immediate	: 8,
 			source		: 9,
 			destination	: 9,
@@ -61,7 +63,7 @@ struct ins_format1 {
 };
 
 struct ins_format2 {
-#if BYTE_ORDER == LITTLE_ENDIAN
+#ifdef __LITTLE_ENDIAN
 	uint32_t	shift_control	: 8,
 			source		: 9,
 			destination	: 9,
@@ -79,7 +81,7 @@ struct ins_format2 {
 };
 
 struct ins_format3 {
-#if BYTE_ORDER == LITTLE_ENDIAN
+#ifdef __LITTLE_ENDIAN
 	uint32_t	immediate	: 8,
 			source		: 9,
 			address		: 10,