diff --git a/plstackapi/planetstack/models.py b/plstackapi/planetstack/models.py
index a8fea63..08a3ff2 100644
--- a/plstackapi/planetstack/models.py
+++ b/plstackapi/planetstack/models.py
@@ -1,4 +1,5 @@
 import os
+from datetime import datetime
 from django.db import models
 from plstackapi.openstack.driver import OpenStackDriver