diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-sysmocom.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-sysmocom.c
index a89eb1b..d7d45e1 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-sysmocom.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-sysmocom.c
@@ -80,7 +80,7 @@ static void __init sysmocom_sob_ap1_setup(void)
 			    art + SYSMOCOM_WMAC_MAC_OFFSET);
 
 	ath79_setup_ar933x_phy4_switch(false, false);
-	ath79_init_mac(ath79_eth0_data.mac_addr, art + SYSMOCOM_MAC0_OFFSET, 0);
+	ath79_init_mac(ath79_eth1_data.mac_addr, art + SYSMOCOM_MAC1_OFFSET, 0);
 	ath79_register_mdio(0, 0x0);
 	/* ath79_register_eth(0) is unused because it using the internal switch */
 	ath79_register_eth(1);
@@ -138,7 +138,7 @@ static void __init sysmocom_sob_jb02_setup(void)
 			    art + SYSMOCOM_WMAC_MAC_OFFSET);
 
 	ath79_setup_ar933x_phy4_switch(false, false);
-	ath79_init_mac(ath79_eth0_data.mac_addr, art + SYSMOCOM_MAC0_OFFSET, 0);
+	ath79_init_mac(ath79_eth1_data.mac_addr, art + SYSMOCOM_MAC1_OFFSET, 0);
 	ath79_register_mdio(0, 0x0);
 	/* ath79_register_eth(0) is unused because it using the internal switch */
 	ath79_register_eth(1);