diff --git a/extend/workermans/model/Base.php b/extend/workermans/model/Base.php
index ad8b0d6..3483035 100644
--- a/extend/workermans/model/Base.php
+++ b/extend/workermans/model/Base.php
@@ -973,8 +973,8 @@ class Base
             $arr_time_discount_info = explode(',', $time_discount_info);
             $result = array_search($redis_str, $arr_time_discount_info);
             if($result !== false) {
-                unset($time_discount_info[$result]);
-                Redis::set('time_discount:info', implode(',', $time_discount_info));
+                unset($arr_time_discount_info[$result]);
+                Redis::set('time_discount:info', implode(',', $arr_time_discount_info));
             }
         }
     }