diff --git a/model/css-rdv1.sh b/model/css-rdv1.sh
index 681e2f2..2a6b991 100644
--- a/model/css-rdv1.sh
+++ b/model/css-rdv1.sh
@@ -9,6 +9,7 @@
 
 cat <<EOF >"$model_param_file"
 -C board.flashloader0.fname=$fip_bin
+-C board.virtioblockdevice.image_path=$busybox_bin
 -C css.cmn_650.force_rnsam_internal=true
 -C css.cmn_650.mesh_config_file=cmn650_rdv1.yml
 -C css.gic_distributor.ITS-device-bits=20