diff --git a/chime/pubsub.py b/chime/pubsub.py
index 6c95906..51826bd 100644
--- a/chime/pubsub.py
+++ b/chime/pubsub.py
@@ -45,7 +45,7 @@ class Publisher:
         self.socket.bind(addr)
 
     def publish(self, message, topic=b''):
-        message = proto.Packet(topic=topic, created=int(time.time()), payload=message)
+        message = proto.Packet(topic=topic, timestamp=int(time.time()), payload=message)
         return self.socket.send(message.SerializeToString())
 
     def publish_json(self, message, topic=b''):