diff --git a/dedicated_ai_server/server.py b/dedicated_ai_server/server.py
index c4bd2f2..d5ed84f 100644
--- a/dedicated_ai_server/server.py
+++ b/dedicated_ai_server/server.py
@@ -309,8 +309,8 @@ async def handle_client(
                     transport,
                     send_lock,
                     response_tasks,
+                    owned_request_ids
                 )
-                owned_request_ids.add(request_id)
             elif request.kind == "cancel":
                 print(f"[request] cancel request_id={request_id}", flush=True)
                 with pending_lock: