diff --git a/HISTORY b/HISTORY
index cbeed63..031dcd2 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,6 +1,7 @@
 
 Version 1.66  2023-02-12
   * struct fast_task_info add field: nio_stages.next for epoll edge trigger
+  * struct fast_task_info add field: notify_next for nio notify queue
 
 Version 1.65  2023-01-09
   * locked_list.h: add functions locked_list_move and locked_list_move_tail
diff --git a/src/fast_task_queue.h b/src/fast_task_queue.h
index 57250de..813b14c 100644
--- a/src/fast_task_queue.h
+++ b/src/fast_task_queue.h
@@ -111,7 +111,8 @@ struct fast_task_info
 	TaskFinishCallback finish_callback;
 	struct nio_thread_data *thread_data;
 	void *ctx;  //context pointer for libserverframe nio
-	struct fast_task_info *next;
+    struct fast_task_info *next;  //for free queue and deleted list
+    struct fast_task_info *notify_next;  //for nio notify queue
 };
 
 struct fast_task_queue