diff --git a/io_uring/io_uring.h b/io_uring/io_uring.h
index d5c9b7a6911d..372129e24372 100644
--- a/io_uring/io_uring.h
+++ b/io_uring/io_uring.h
@@ -88,7 +88,6 @@ struct file *io_file_get_fixed(struct io_kiocb *req, int fd,
 void __io_req_task_work_add(struct io_kiocb *req, unsigned flags);
 void io_req_task_work_add_remote(struct io_kiocb *req, struct io_ring_ctx *ctx,
 				 unsigned flags);
-bool io_alloc_async_data(struct io_kiocb *req);
 void io_req_task_queue(struct io_kiocb *req);
 void io_req_task_complete(struct io_kiocb *req, io_tw_token_t tw);
 void io_req_task_queue_fail(struct io_kiocb *req, int ret);