diff --git a/lib/libc/i386/net/htonl.S b/lib/libc/i386/net/htonl.S
index da74ed67a902..8c79bf63ba09 100644
--- a/lib/libc/i386/net/htonl.S
+++ b/lib/libc/i386/net/htonl.S
@@ -46,7 +46,11 @@ __FBSDID("$FreeBSD$");
         .set CNAME(htonl),CNAME(__htonl)
 ENTRY(__htonl)
 	movl	4(%esp),%eax
+#ifdef I386_CPU
 	xchgb	%al,%ah
 	roll	$16,%eax
 	xchgb	%al,%ah
+#else
+	bswap	%eax
+#endif
 	ret
diff --git a/lib/libc/i386/net/ntohl.S b/lib/libc/i386/net/ntohl.S
index 15e2d6e35232..c7fc6c3fef21 100644
--- a/lib/libc/i386/net/ntohl.S
+++ b/lib/libc/i386/net/ntohl.S
@@ -46,7 +46,11 @@ __FBSDID("$FreeBSD$");
         .set CNAME(ntohl),CNAME(__ntohl)
 ENTRY(__ntohl)
 	movl	4(%esp),%eax
+#ifdef I386_CPU
 	xchgb	%al,%ah
 	roll	$16,%eax
 	xchgb	%al,%ah
+#else
+	bswap	%eax
+#endif
 	ret