diff --git a/docs/assets/img/CB86FE26-7EC7-4480-83FF-DE29285D1C7B.png b/docs/assets/img/CB86FE26-7EC7-4480-83FF-DE29285D1C7B.png
new file mode 100644
index 00000000..b61c99fd
Binary files /dev/null and b/docs/assets/img/CB86FE26-7EC7-4480-83FF-DE29285D1C7B.png differ
diff --git a/docs/assets/img/image-20210321193956832.png b/docs/assets/img/image-20210321193956832.png
deleted file mode 100644
index e69de29b..00000000
diff --git a/docs/component/global-functions.md b/docs/component/global-functions.md
index 484dd7f5..bb79307e 100644
--- a/docs/component/global-functions.md
+++ b/docs/component/global-functions.md
@@ -267,7 +267,7 @@ $pass->obj = true;
 zm_dump($pass);
 ```
 
-<img src="../assets/img/image-20210321193956832.png" alt="image-20210321193956832" style="zoom:50%;" />
+<img src="../assets/img/CB86FE26-7EC7-4480-83FF-DE29285D1C7B.png" alt="CB86FE26-7EC7-4480-83FF-DE29285D1C7B" style="zoom:50%;" />
 
 ## zm_config()