diff --git a/show/get.php b/show/get.php
index 0386b6c..61a042f 100644
--- a/show/get.php
+++ b/show/get.php
@@ -325,7 +325,6 @@ if($act == 'applet_unifiedorder') {
   $s2 .= "&key=".$applet_key;
   $signData['paySign'] = strtoupper(md5($s2));
 
-  unset($signData['appId']);
   $data['requestPayment'] = $signData;
   echoRs(1, 'ok', array('data' => $data));