diff --git a/image/HOWTO.sh b/image/HOWTO.sh
index 4732f4e103276cccbb953b9cc8ade9653c936442..8cb919730158350e68da30e85fe858a070c85cea 100755
--- a/image/HOWTO.sh
+++ b/image/HOWTO.sh
@@ -1,5 +1,6 @@
 #! /bin/sh -xe
 build-openstack-debian-image --release stretch \
-  --extra-packages acl,default-jre-headless,gnupg,puppet \
+  --automatic-resize \
+  --extra-packages acl,default-jre-headless,gnupg,qemu-guest-agent,puppet \
   --image-size 5 \
   --hook-script `dirname $0`/hadoop.sh 2>&1 | tee build-image.log