diff --git a/files/apts/nova b/files/apts/nova
index 405d53b..9eefed7 100644
--- a/files/apts/nova
+++ b/files/apts/nova
@@ -1,4 +1,5 @@
 dnsmasq-base
+dnsmasq-utils # for dhcp_release
 kpartx
 parted
 arping # used for send_arp_for_ha option in nova-network
diff --git a/stack.sh b/stack.sh
index 841cbb4..78851b9 100755
--- a/stack.sh
+++ b/stack.sh
@@ -826,6 +826,7 @@ add_nova_flag "--ec2_dmz_host=$EC2_DMZ_HOST"
 add_nova_flag "--rabbit_host=$RABBIT_HOST"
 add_nova_flag "--rabbit_password=$RABBIT_PASSWORD"
 add_nova_flag "--glance_api_servers=$GLANCE_HOSTPORT"
+add_nova_flag "--force_dhcp_release"
 if [ -n "$INSTANCES_PATH" ]; then
     add_nova_flag "--instances_path=$INSTANCES_PATH"
 fi