diff --git a/webapp/services/BattleBoxService.php b/webapp/services/BattleBoxService.php
index d4109942..82f9edd2 100644
--- a/webapp/services/BattleBoxService.php
+++ b/webapp/services/BattleBoxService.php
@@ -239,7 +239,7 @@ class BattleBoxService {
 
     public static function incDropTotalNum($phase, $time, $val)
     {
-        $key = self::DAILY_PHASE_DROP_TOTAL_KEY . $phase . ':' . $time;
+        $key = self::DAILY_PHASE_DROP_TOTAL_KEY . $phase . ':' . myself()->_getDaySeconds($time);
         $r = myself()->_getRedis($key);
         $num = intval($r->get($key));
         if (empty($num)) {