diff --git a/hooks/keystone_utils.py b/hooks/keystone_utils.py
index 9e317f9e..a608482f 100644
--- a/hooks/keystone_utils.py
+++ b/hooks/keystone_utils.py
@@ -78,10 +78,10 @@ BASE_PACKAGES = [
     'python-keystoneclient',
     'python-mysqldb',
     'python-psycopg2',
+    'python-six',
     'pwgen',
     'unison',
     'uuid',
-    'python-six',
 ]
 
 BASE_SERVICES = [
diff --git a/unit_tests/test_keystone_hooks.py b/unit_tests/test_keystone_hooks.py
index 49f75539..9f8f37c4 100644
--- a/unit_tests/test_keystone_hooks.py
+++ b/unit_tests/test_keystone_hooks.py
@@ -85,7 +85,7 @@ class KeystoneRelationTests(CharmTestCase):
         self.apt_install.assert_called_with(
             ['haproxy', 'unison', 'python-keystoneclient',
              'uuid', 'python-mysqldb', 'openssl', 'apache2',
-             'pwgen', 'keystone', 'python-psycopg2'], fatal=True)
+             'pwgen', 'python-six', 'keystone', 'python-psycopg2'], fatal=True)
         self.assertTrue(self.execd_preinstall.called)
 
     mod_ch_openstack_utils = 'charmhelpers.contrib.openstack.utils'