diff --git a/rootfs-builder/debian/config.sh b/rootfs-builder/debian/config.sh
index 698a128b2..9eb022e66 100644
--- a/rootfs-builder/debian/config.sh
+++ b/rootfs-builder/debian/config.sh
@@ -8,6 +8,8 @@ OS_VERSION=${OS_VERSION:-9.5}
 # Set OS_NAME to the desired debian "codename"
 OS_NAME=${OS_NAME:-"stretch"}
 
+PACKAGES="systemd iptables init chrony"
+
 # NOTE: Re-using ubuntu rootfs configuration, see 'ubuntu' folder for full content.
 source $script_dir/ubuntu/$CONFIG_SH