diff --git a/app/controller/api/store/merchant/Merchant.php b/app/controller/api/store/merchant/Merchant.php
index fe71060d..5236b70d 100755
--- a/app/controller/api/store/merchant/Merchant.php
+++ b/app/controller/api/store/merchant/Merchant.php
@@ -301,6 +301,7 @@ class Merchant extends BaseController
         if (empty($merchantInfo)) {
             return app('json')->fail('参数错误');
         }
+        $merchantInfo['paid_margin'] = $merchantInfo['paid_margin'] > $merchantInfo['margin'] ? $merchantInfo['margin'] : $merchantInfo['paid_margin'];
         $merchantInfo['unpaid_margin'] = bcsub($merchantInfo['margin'], $merchantInfo['paid_margin'], 2);
         if ($merchantInfo['margin'] <= 0) {
             $merchantInfo['unpaid_margin'] = 0;