diff --git a/data/model/legacy.py b/data/model/legacy.py
index 23b1bde77..88189ab3a 100644
--- a/data/model/legacy.py
+++ b/data/model/legacy.py
@@ -1076,7 +1076,7 @@ def list_repository_tags(namespace_name, repository_name):
 
 
 def garbage_collect_repository(namespace_name, repository_name):
-  with transaction_factory(db):
+  with config.app_config['DB_TRANSACTION_FACTORY'](db):
     # Get a list of all images used by tags in the repository
     tag_query = (RepositoryTag
       .select(RepositoryTag, Image, ImageStorage)