diff --git a/docs/design/v2.8-state-enhancement.md b/docs/design/v2.8-state-enhancement.md
index 1ded5de..1131643 100644
--- a/docs/design/v2.8-state-enhancement.md
+++ b/docs/design/v2.8-state-enhancement.md
@@ -296,7 +296,7 @@ CREATE TABLE checkpoints (
 GET    /api/projects/{pid}/tasks/{tid}/checkpoints               — 列出 task 的所有 checkpoint
 POST   /api/projects/{pid}/tasks/{tid}/checkpoints               — Agent 创建 checkpoint
 POST   /api/projects/{pid}/tasks/{tid}/checkpoints/{cid}/approve — 用户通过
-POST   /api/projects/{pid}/tasks/{cid}/reject                    — 用户驳回
+POST   /api/projects/{pid}/tasks/{tid}/checkpoints/{cid}/reject                    — 用户驳回
 ```
 
 approve/reject 时后端自动将 task 从 `waiting_human` 推进：