diff --git a/docs/guidance/usage.md b/docs/guidance/usage.md
index 7213887..9ddb82d 100644
--- a/docs/guidance/usage.md
+++ b/docs/guidance/usage.md
@@ -3,13 +3,13 @@
  * @Author: AceSix
  * @Date: 2021-06-28 10:01:40
  * @LastEditors: AceSix
- * @LastEditTime: 2021-06-28 10:03:49
+ * @LastEditTime: 2021-06-28 10:05:11
  * Copyright (C) 2021 SJTU. All rights reserved.
 -->
 
 # Usage
 
-###### Before running, please make sure you have installed the environment and downloaded requested files according to the [preparation guidance](docs/guidance/preparation.md).
+###### Before running, please make sure you have installed the environment and downloaded requested files according to the [preparation guidance](./preparation.md).
 
 ### Simple face swapping for already face-aligned images
 ```