diff --git a/v1/ucloud/digest.php b/v1/ucloud/digest.php
index 5163d2e..4958f4b 100644
--- a/v1/ucloud/digest.php
+++ b/v1/ucloud/digest.php
@@ -1,4 +1,4 @@
-<?php
+<?php
 
 require_once("utils.php");
 require_once("conf.php");
diff --git a/v1/ucloud/http.php b/v1/ucloud/http.php
index c5353d6..878d45e 100644
--- a/v1/ucloud/http.php
+++ b/v1/ucloud/http.php
@@ -1,4 +1,4 @@
-<?php
+<?php
 
 require_once("conf.php");
 require_once("utils.php");
diff --git a/v1/ucloud/mimetypes.php b/v1/ucloud/mimetypes.php
index f253908..fae4604 100644
--- a/v1/ucloud/mimetypes.php
+++ b/v1/ucloud/mimetypes.php
@@ -1,4 +1,4 @@
-<?php
+<?php
     
 global $mimetype_complete_map;
 $mimetype_complete_map = array(
diff --git a/v1/ucloud/utils.php b/v1/ucloud/utils.php
index 0b7f050..05d3fc6 100644
--- a/v1/ucloud/utils.php
+++ b/v1/ucloud/utils.php
@@ -1,4 +1,4 @@
-<?php
+<?php
 
 require_once("mimetypes.php");