diff --git a/app/Service/PaymentService.php b/app/Service/PaymentService.php
index b69bdb9..d9f22d3 100644
--- a/app/Service/PaymentService.php
+++ b/app/Service/PaymentService.php
@@ -234,7 +234,7 @@ class PaymentService extends AbstractService
             $fee = 1;
         }
         if ($params['isAccountPay']) {
-            $fee == 200;
+            $fee = 200;
         }
         $orderSplitInfos = [];
         $splitUserIds = array_column($params['splitInfoList'], 'splitUserId');