diff --git a/swh/storage/listener.py b/swh/storage/listener.py
index e4b71fe5..43be6675 100644
--- a/swh/storage/listener.py
+++ b/swh/storage/listener.py
@@ -1,101 +1,102 @@
 # Copyright (C) 2016 The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 import json
 import logging
 
 import kafka
 import msgpack
 
 from swh.core.config import load_named_config
 import swh.storage.db
 
 CONFIG_BASENAME = 'storage/listener'
 DEFAULT_CONFIG = {
     'database': ('str', 'service=softwareheritage'),
     'brokers': ('list[str]', ['getty.internal.softwareheritage.org']),
     'topic_prefix': ('str', 'swh.tmp_journal.new'),
     'poll_timeout': ('int', 10),
 }
 
 
 def decode_sha(value):
     """Decode the textual representation of a SHA hash"""
     if isinstance(value, str):
         return bytes.fromhex(value)
     return value
 
 
 def decode_json(value):
     """Decode a JSON value containing hashes and other types"""
     value = json.loads(value)
 
     return {k: decode_sha(v) for k, v in value.items()}
 
 
 OBJECT_TYPES = {
     'content': decode_sha,
     'skipped_content': decode_json,
     'directory': decode_sha,
     'revision': decode_sha,
     'release': decode_sha,
     'origin_visit': decode_json,
+    'origin': int,
 }
 
 
 def register_all_notifies(db):
     """Register to notifications for all object types listed in OBJECT_TYPES"""
     with db.transaction() as cur:
         for object_type in OBJECT_TYPES:
             db.register_listener('new_%s' % object_type, cur)
 
 
 def dispatch_notify(topic_prefix, producer, notify):
     """Dispatch a notification to the proper topic"""
     channel = notify.channel
     if not channel.startswith('new_') or channel[4:] not in OBJECT_TYPES:
         logging.warn("Got unexpected notify %s" % notify)
         return
 
     object_type = channel[4:]
 
     topic = '%s.%s' % (topic_prefix, object_type)
     data = OBJECT_TYPES[object_type](notify.payload)
     producer.send(topic, value=data)
 
 
 def run_from_config(config):
     """Run the Software Heritage listener from configuration"""
     db = swh.storage.db.Db.connect(config['database'])
 
     def kafka_serializer(data):
         return msgpack.dumps(data, use_bin_type=True)
 
     producer = kafka.KafkaProducer(
         bootstrap_servers=config['brokers'],
         value_serializer=kafka_serializer,
     )
 
     register_all_notifies(db)
 
     topic_prefix = config['topic_prefix']
     poll_timeout = config['poll_timeout']
     try:
         while True:
             for notify in db.listen_notifies(poll_timeout):
                 dispatch_notify(topic_prefix, producer, notify)
             producer.flush()
     except Exception:
         logging.exception("Caught exception")
         producer.flush()
 
 
 if __name__ == '__main__':
     logging.basicConfig(
         level=logging.INFO,
         format='%(asctime)s %(process)d %(levelname)s %(message)s'
     )
     config = load_named_config(CONFIG_BASENAME, DEFAULT_CONFIG)
     run_from_config(config)