diff --git a/target/linux/ath79/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom b/target/linux/ath79/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
index f2b1433448..a063a3f9ca 100644
--- a/target/linux/ath79/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
+++ b/target/linux/ath79/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
@@ -188,7 +188,7 @@ case "$FIRMWARE" in
 		;;
 	wd,mynet-wifi-rangeextender)
 		ath9k_eeprom_extract "art" 4096 4096
-		ath9k_patch_fw_mac $(nvram get wl0_hwaddr) "$mac" 2
+		ath9k_patch_fw_mac $(nvram get wl0_hwaddr) 2
 		;;
 	*)
 		ath9k_eeprom_die "board $board is not supported yet"