diff --git a/pkg/de-p1st-installer/PKGBUILD b/pkg/de-p1st-installer/PKGBUILD
index 5f38012..3b2a895 100644
--- a/pkg/de-p1st-installer/PKGBUILD
+++ b/pkg/de-p1st-installer/PKGBUILD
@@ -2,7 +2,7 @@
 _pkgname=installer
 _reponame=arch
 pkgname="de-p1st-$_pkgname"
-pkgver=0.1.8
+pkgver=0.1.9
 pkgrel=1
 pkgdesc="Bash script to install Arch Linux"
 arch=('any')
diff --git a/pkg/de-p1st-installer/example-headless-docker.cfg b/pkg/de-p1st-installer/example-headless-docker.cfg
index 21e9e6b..072b0b1 100644
--- a/pkg/de-p1st-installer/example-headless-docker.cfg
+++ b/pkg/de-p1st-installer/example-headless-docker.cfg
@@ -20,9 +20,10 @@ LEAVE_MOUNTED=0
 
 PACSTRAP_INTERACTIVE=1
 
+ADDITIONAL_PKGS=()
 # to skip pacman selections
-ADDITIONAL_PKGS=('mkinitcpio' 'de-p1st-kernel-lts' 'de-p1st-ucode-placeholder' 'qemu-guest-agent')
+ADDITIONAL_PKGS+=('mkinitcpio' 'de-p1st-kernel-lts' 'de-p1st-ucode-placeholder' 'qemu-guest-agent')
 # remote ssh access
-ADDITIONAL_PKGS=('de-p1st-ssh' 'de-p1st-ssh-key-yoda')
+ADDITIONAL_PKGS+=('de-p1st-ssh' 'de-p1st-ssh-key-yoda')
 # docker and docker-compose
-ADDITIONAL_PKGS=('docker' 'docker-compose')
+ADDITIONAL_PKGS+=('docker' 'docker-compose')
diff --git a/pkg/de-p1st-installer/example-vbox.cfg b/pkg/de-p1st-installer/example-vbox.cfg
index 4c86a78..57a5469 100644
--- a/pkg/de-p1st-installer/example-vbox.cfg
+++ b/pkg/de-p1st-installer/example-vbox.cfg
@@ -37,7 +37,8 @@ PACSTRAP_INTERACTIVE=1
 # Even though de-p1st-mkinitcpio depends on mkinitcpio,
 # pacstrap will still ask for an provider for initramfs
 # except if we explicitly add mkinitcpio here
-ADDITIONAL_PKGS=('mkinitcpio' 'de-p1st-kernel-lts' 'de-p1st-ucode-placeholder' 'virtualbox-guest-utils')
+ADDITIONAL_PKGS=()
+ADDITIONAL_PKGS+=('mkinitcpio' 'de-p1st-kernel-lts' 'de-p1st-ucode-placeholder' 'virtualbox-guest-utils')
 #
 # XFCE4 desktop with HiDPI
 ADDITIONAL_PKGS+=('de-p1st-gpu-generic' 'de-p1st-xfce4-hidpi' 'de-p1st-sddm-autologin-yoda' 'de-p1st-sddm-theme-default')