diff --git a/webapp/models/HashRateShopBuyRecord.php b/webapp/models/HashRateShopBuyRecord.php
index f194b448..8acd33c0 100644
--- a/webapp/models/HashRateShopBuyRecord.php
+++ b/webapp/models/HashRateShopBuyRecord.php
@@ -32,7 +32,8 @@ class HashRateShopBuyRecord extends BaseModel
         );
         return array_map(function ($row) {
             $nowDaySeconds = myself()->_getNowDaySeconds();
-            if (!($row['last_buy_time'] >= $nowDaySeconds && $row['last_buy_time'] <= $nowDaySeconds)) {
+            if (!($row['last_buy_time'] >= $nowDaySeconds &&
+                  $row['last_buy_time'] <= $nowDaySeconds + 3600 * 24)) {
                 $row['this_day_buy_times'] = 0;
             }
             $mondaySeconds = myself()->_getMondaySeconds();