diff --git a/Lib/test/test_asyncio/test_eager_task_factory.py b/Lib/test/test_asyncio/test_eager_task_factory.py
index 0561b54a3f19c6..72bceb8c31441b 100644
--- a/Lib/test/test_asyncio/test_eager_task_factory.py
+++ b/Lib/test/test_asyncio/test_eager_task_factory.py
@@ -217,7 +217,9 @@ def test_staggered_race_with_eager_tasks(self):
         # See https://github.com/python/cpython/issues/124309
 
         async def fail():
-            await asyncio.sleep(0)
+            # Raise without suspending: staggered_race() cancels unfinished
+            # coroutines once another one wins, so yielding first could turn
+            # this into a CancelledError when the event loop is busy.
             raise ValueError("no good")
 
         async def blocked():