diff --git a/webapp/services/RoomBattleDataService.php b/webapp/services/RoomBattleDataService.php
index 70164044..b896f901 100644
--- a/webapp/services/RoomBattleDataService.php
+++ b/webapp/services/RoomBattleDataService.php
@@ -204,7 +204,7 @@ class RoomBattleDataService extends BaseService {
     private function _calBattleScore($battleInfo){
         $paramMeta = mt\Parameter::getVal('performance_score_range',0);
         $scoreParam = explode("|",$paramMeta);
-        if (count($paramMeta) < 2){
+        if (count($scoreParam) < 2){
             error_log('Parameter table  error');
             return 0;
         }