diff --git a/package/base-files/files/lib/functions/uci-defaults.sh b/package/base-files/files/lib/functions/uci-defaults.sh
index a37e8cf824..6f395ec24b 100644
--- a/package/base-files/files/lib/functions/uci-defaults.sh
+++ b/package/base-files/files/lib/functions/uci-defaults.sh
@@ -107,7 +107,7 @@ ucidef_set_bridge_mac() {
 }
 
 ucidef_set_network_device_mac() {
-	json_select_object "network-device"
+	json_select_object "network_device"
 	json_select_object "${1}"
 	json_add_string macaddr "${2}"
 	json_select ..