diff --git a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
index 4171af2f60..de003e3d23 100644
--- a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
+++ b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
@@ -367,7 +367,7 @@ mac80211_get_addr() {
 	local phy="$1"
 	local idx="$(($2 + 1))"
 
-	head -n $(($macidx + 1)) /sys/class/ieee80211/${phy}/addresses | tail -n1
+	head -n $idx /sys/class/ieee80211/${phy}/addresses | tail -n1
 }
 
 mac80211_generate_mac() {