diff --git a/hyhproject/common/model/UserVouchers.php b/hyhproject/common/model/UserVouchers.php
index 1cd0452..3cec37d 100755
--- a/hyhproject/common/model/UserVouchers.php
+++ b/hyhproject/common/model/UserVouchers.php
@@ -53,6 +53,8 @@ class UserVouchers extends Base{
 				$sm->addSysSummary(0,$addPaySlow,1,'应释放总额大于最大释放总额');
 			}
 			//扣减系统释放值
+            if ($paySlow < 0) $paySlow = 0;
+            if ($payFast < 0) $payFast = 0;
 			$sm->addSysSummary($payFast,$paySlow,2,'扣减系统释放值');
 			//取最小值作为总释放额
 			$payNum = min($maxPayNum,$toPaySum);