diff --git a/plus/qrcode.php b/plus/qrcode.php
index 1d42d70f..dda64dbc 100755
--- a/plus/qrcode.php
+++ b/plus/qrcode.php
@@ -7,7 +7,10 @@
 $action = isset($action)? $action : '';
 $type = isset($type)? RemoveXSS(HtmlReplace($type,3)) : '';
 $id = (isset($id) && is_numeric($id)) ? $id : 0;
-if ( !in_array($type,array('list','arc','index')) ) $url = "http://2v.dedecms.com";
+if ( !in_array($type,array('list','arc','index')) ){
+    $url = "http://2v.dedecms.com";
+    exit("error requests");
+}
 
 if ( $action=='get_qrcode' )
 {