diff --git a/endpoints/index.py b/endpoints/index.py
index 1fa05197a..207ace697 100644
--- a/endpoints/index.py
+++ b/endpoints/index.py
@@ -191,7 +191,7 @@ def update_images(namespace, repository):
       logger.debug('Setting checksum for image id: %s to %s' %
                    (image['id'], image['checksum']))
       updated_tags[image['Tag']] = image['id']
-      model.set_image_checksum(image['id'], repository, image['checksum'])
+      model.set_image_checksum(image['id'], repo, image['checksum'])
 
     # Generate a job for each webhook that has been added to this repo
     webhooks = model.list_webhooks(namespace, repository)