diff --git a/create_pxeinitrd.sh b/create_pxeinitrd.sh
index 1989225..bca6dc8 100755
--- a/create_pxeinitrd.sh
+++ b/create_pxeinitrd.sh
@@ -1,11 +1,7 @@
 #!/bin/bash
 set -Eeuxo pipefail
 
-HOSTNAME=localhost
-RELEASE=unstable
-
 TMP_DIR=${TMP_DIR:=$PWD}
-
 MNT_DIR=$TMP_DIR/newroot
 INITRD_DIR=$TMP_DIR/initramfs
 RESULT_DIR=$TMP_DIR/files
@@ -14,7 +10,9 @@ RESULT_DIR=$TMP_DIR/files
 [[ -d $INITRD_DIR ]] || mkdir -p $INITRD_DIR
 [[ -d $RESULT_DIR ]] || mkdir -p $RESULT_DIR
 
+HOSTNAME=localhost
 # Configs overwritable via environment variables
+RELEASE=${RELEASE:=unstable}
 FLAVOUR=${FLAVOUR:=debian}					# Either 'debian' or 'ubuntu'
 INCLUDES=${INCLUDES:="openssh-server,init,curl,parted,xz-utils,vim,locales-all,less,ceph-common,dmidecode,iputils-ping,fping,tcpdump,rsync,ethtool,lldpd,iproute2,net-tools,sudo,gnupg,tcpdump,mtr-tiny,ifupdown,ipmitool,iptables,telnet,netcat,bridge-utils,vlan,ifstat,ncurses-term,wget,dhcpcd5"}
 MIRROR=${MIRROR:="https://mirrors.wit.com/debian"}