diff --git a/webapp/services/BattleBoxService.php b/webapp/services/BattleBoxService.php
index c53a037c..e3a5c037 100644
--- a/webapp/services/BattleBoxService.php
+++ b/webapp/services/BattleBoxService.php
@@ -16,10 +16,10 @@ require_once('mt/Parameter.php');
 */
 class BattleBoxService {
 
-    const DAILY_PHASE_DROP_LAST_TIME_KEY = ':';
-    const DAILY_PHASE_DROP_TOTAL_KEY = ':';
-    const DAILY_PHASE_ALLOC_NUM_KEY = ':';
-    const DAILY_PHASE_ALREADY_ALLOC_NUM_KEY = ':';
+    const DAILY_PHASE_DROP_LAST_TIME_KEY = 'daily_phase_drop_last_time:';
+    const DAILY_PHASE_DROP_TOTAL_KEY = 'daily_phase_drop_total:';
+    const DAILY_PHASE_ALLOC_NUM_KEY = 'daily_phase_alloc_num:';
+    const DAILY_PHASE_ALREADY_ALLOC_NUM_KEY = 'daily_phase_already_alloc_num:';
 
     public static function allocBox($roomUuid)
     {