diff --git a/plugin/webman/gateway/Events.php b/plugin/webman/gateway/Events.php
index 17353cf..5d6beb1 100644
--- a/plugin/webman/gateway/Events.php
+++ b/plugin/webman/gateway/Events.php
@@ -126,7 +126,8 @@ class Events
             $redis_str = Base::get_shopping_save_uid($message['shop_id'], $message['table_code']) . ':time_discount';
             // 限时折扣修改
             if($message['operate_type'] == 'time_discount_save') {
-                if(empty($message)) {
+
+                if(empty($message['data'])) {
                     $res = Redis::del($redis_str);
                 }else {
                     $res = Redis::set($redis_str, $message['data']);