diff --git a/feeds/ucentral/dynamic-vlan/files/dynamic-vlan b/feeds/ucentral/dynamic-vlan/files/dynamic-vlan
index 8fbea8695..e6486776c 100644
--- a/feeds/ucentral/dynamic-vlan/files/dynamic-vlan
+++ b/feeds/ucentral/dynamic-vlan/files/dynamic-vlan
@@ -6,7 +6,7 @@ USE_PROCD=1
 PROG=/usr/sbin/dynamic-vlan
 
 start_service() {
-	wan=$(cat /etc/board.json | jsonfilter -e '@.network.wan.ifname')
+	wan=$(cat /etc/board.json | jsonfilter -e '@.network.wan.device')
 	procd_open_instance
 	procd_set_param command "$PROG" $wan
 	procd_set_param respawn