diff --git a/wchat/wx/Recharge.php b/wchat/wx/Recharge.php
index d7a1221..3416dcb 100644
--- a/wchat/wx/Recharge.php
+++ b/wchat/wx/Recharge.php
@@ -100,10 +100,16 @@ class Recharge extends SmallProgram
 	{
 		$data = [
 			'appid'            => $this->config->getAppid(),
-			'mch_id'           => $this->config->getMchId(),
+			'mchid'            => $this->config->getMchId(),
 			'nonce_str'        => Help::random(32),
 			'body'             => $this->config->getBody(),
+			'description'      => $this->config->getBody(),
+			'payer'            => ['openid' => $this->data['openid']],
 			'out_trade_no'     => $this->orderNo,
+			"amount"           => [
+				"total"    => $this->money,
+				"currency" => "CNY"
+			],
 			'total_fee'        => $this->money,
 			'spbill_create_ip' => $_SERVER['REMOTE_ADDR'],
 			'notify_url'       => $this->config->getNotifyUrl(),