diff --git a/webapp/models/RankBattle.php b/webapp/models/RankBattle.php
index 62be7ecf..0f1751cd 100644
--- a/webapp/models/RankBattle.php
+++ b/webapp/models/RankBattle.php
@@ -57,7 +57,7 @@ class RankBattle extends BaseModel
 
 
     public static function getTopLimit($mode, $class, $type, $limit, $fieldKv=null){
-        if (!self::inspectType($type) || self::inspectClass($class)){
+        if (!self::inspectType($type) || !self::inspectClass($class) || !self::inspectMode($mode) ){
             return  array();
         }
         if (!$fieldKv){