diff --git a/devstack/customize_image.sh b/devstack/customize_image.sh
index 77ff699..0b9d8ab 100644
--- a/devstack/customize_image.sh
+++ b/devstack/customize_image.sh
@@ -149,6 +149,7 @@
 function customize_image {
     local image_file=$1
     local top_dir=$(dirname "${NEUTRON_TEMPEST_PLUGIN_DIR}")
+    install_customize_image_tools
     (
         export TEMP_DIR DISK_FORMAT RC_DIR
         if [[ "$(basename ${image_file})" == ubuntu-* ]]; then
diff --git a/devstack/plugin.sh b/devstack/plugin.sh
index 2e3ac20..42c31cd 100644
--- a/devstack/plugin.sh
+++ b/devstack/plugin.sh
@@ -6,7 +6,6 @@
 # install_neutron_tempest_plugin
 function install_neutron_tempest_plugin {
     setup_dev_lib "neutron-tempest-plugin"
-    install_customize_image_tools
 }
 
 if [[ "$1" == "stack" ]]; then
@@ -20,7 +19,7 @@
         test-config)
             echo_summary "Configuring neutron-tempest-plugin tempest options"
             configure_advanced_image
-            create_flavor_for_advance_image ntp_image_384M 384 4 1
+            create_flavor_for_advance_image $ADVANCED_INSTANCE_TYPE 256 4 1
             configure_flavor_for_advanced_image
     esac
 fi