diff --git a/src/exo/shared/constants.py b/src/exo/shared/constants.py
index 9683689b..1531fd08 100644
--- a/src/exo/shared/constants.py
+++ b/src/exo/shared/constants.py
@@ -44,3 +44,5 @@ LIBP2P_LOCAL_EVENTS_TOPIC = "worker_events"
 LIBP2P_GLOBAL_EVENTS_TOPIC = "global_events"
 LIBP2P_ELECTION_MESSAGES_TOPIC = "election_message"
 LIBP2P_COMMANDS_TOPIC = "commands"
+
+EXO_MAX_CHUNK_SIZE = 512 * 1024