diff --git a/initdb.py b/initdb.py
index 113d96a3e..87cc31dcf 100644
--- a/initdb.py
+++ b/initdb.py
@@ -67,7 +67,7 @@ def __create_subtree(repo, structure, creator_username, parent):
     logger.debug('new docker id: %s' % docker_image_id)
     checksum = __gen_checksum(docker_image_id)
 
-    new_image = model.create_or_link_image(docker_image_id, repo, None, {})
+    new_image = model.create_or_link_image(docker_image_id, repo, None, {}, {})
     new_image.storage.uuid = IMAGE_UUIDS[image_num % len(IMAGE_UUIDS)]
     new_image.storage.save()