diff --git a/src/agents/tracing/processors.py b/src/agents/tracing/processors.py
index 5d8f4d8a..f929d05d 100644
--- a/src/agents/tracing/processors.py
+++ b/src/agents/tracing/processors.py
@@ -182,7 +182,6 @@ def __init__(
         # Track when we next *must* perform a scheduled export
         self._next_export_time = time.time() + self._schedule_delay
 
-        self._shutdown_event = threading.Event()
         self._worker_thread = threading.Thread(target=self._run, daemon=True)
         self._worker_thread.start()