diff --git a/target/linux/ramips/base-files/etc/board.d/02_network b/target/linux/ramips/base-files/etc/board.d/02_network
index 49284f562dd..981d6c2596b 100755
--- a/target/linux/ramips/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/base-files/etc/board.d/02_network
@@ -663,7 +663,7 @@ ramips_setup_macs()
 		;;
 	iodata,wn-ac1167gr|\
 	iodata,wn-ac733gr3)
-		wan_mac=$(macaddr_add "$(mtd_get_mac_binary factory 0x4)" -1)
+		wan_mac=$(mtd_get_mac_ascii u-boot-env wanaddr)
 		;;
 	iodata,wn-ax1167gr|\
 	iodata,wn-gx300gr|\