diff --git a/bootstrap.sh b/bootstrap.sh
index 70b243b..a6400f1 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -37,9 +37,11 @@ init() {
 }
 
 crypt_prepare_disk() {
+    set +e
     cryptsetup open --type plain -d /dev/urandom $1 wipe_me
     dd if=/dev/zero of=/dev/mapper/wipe_me bs=1M status=progress
     cryptsetup close wipe_me
+    set -e
 }
 
 crypt_create_fs() {