diff --git a/setup.sh b/setup.sh
index 300cd73..2323f55 100755
--- a/setup.sh
+++ b/setup.sh
@@ -2,7 +2,7 @@
 set -e
 
 
-apt-get -y install mdadm cryptsetup
+apt-get -y install mdadm cryptsetup debootstrap
 
 # returns /dev/md0 as root device
 # returns /dev/md1 as boot device