diff --git a/components/libc/posix/io/aio/aio.c b/components/libc/posix/io/aio/aio.c
index a6d8acab091..8ca8b3124ec 100644
--- a/components/libc/posix/io/aio/aio.c
+++ b/components/libc/posix/io/aio/aio.c
@@ -498,7 +498,7 @@ int lio_listio(int mode, struct aiocb * const list[], int nent,
  */
 int aio_system_init(void)
 {
-    aio_queue = rt_workqueue_create("aio", 2048, RT_THREAD_PRIORITY_MAX/2);
+    aio_queue = rt_workqueue_create("aio", IDLE_THREAD_STACK_SIZE, RT_THREAD_PRIORITY_MAX/2);
     RT_ASSERT(aio_queue != NULL);
 
     return 0;