diff --git a/src/arch/x86/prefix/unlzma.S b/src/arch/x86/prefix/unlzma.S
index e4d1e190d..6ab3222e2 100644
--- a/src/arch/x86/prefix/unlzma.S
+++ b/src/arch/x86/prefix/unlzma.S
@@ -45,7 +45,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 
 	.section ".note.GNU-stack", "", @progbits
 	.code32
-	.arch i486
+	.arch i386
 	.section ".prefix.lib", "ax", @progbits
 
 #ifdef CODE16
@@ -962,7 +962,9 @@ decompress:
 	ADDR32 lodsb	/* discard initial byte */
 	print_hex_byte %al
 	ADDR32 lodsl
-	bswapl	%eax
+	xchgb	%al, %ah
+	roll	$16, %eax
+	xchgb	%al, %ah
 	print_hex_dword %eax
 	print_character $('\n')
 	movl	%eax, rc_code(%ebp)