diff --git a/sys/dev/ic/rtl8169.c b/sys/dev/ic/rtl8169.c
index 99d3a84dc1a8..890b679b6dfe 100644
--- a/sys/dev/ic/rtl8169.c
+++ b/sys/dev/ic/rtl8169.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: rtl8169.c,v 1.157 2019/01/22 03:42:26 msaitoh Exp $	*/
+/*	$NetBSD: rtl8169.c,v 1.158 2019/04/05 23:44:59 uwe Exp $	*/
 
 /*
  * Copyright (c) 1997, 1998-2003
@@ -33,7 +33,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rtl8169.c,v 1.157 2019/01/22 03:42:26 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rtl8169.c,v 1.158 2019/04/05 23:44:59 uwe Exp $");
 /* $FreeBSD: /repoman/r/ncvs/src/sys/dev/re/if_re.c,v 1.20 2004/04/11 20:34:08 ru Exp $ */
 
 /*
@@ -1959,7 +1959,7 @@ re_init(struct ifnet *ifp)
 	} else if ((sc->sc_quirk & RTKQ_PCIE) != 0) {
 		period = 8;
 	} else {
-		switch (CSR_READ_4(sc, RTK_CFG2_BUSFREQ) & 0x7) {
+		switch (CSR_READ_1(sc, RTK_CFG2_BUSFREQ) & 0x7) {
 		case RTK_BUSFREQ_33MHZ:
 			period = 30;
 			break;