diff --git a/Source/Contents/Monster/ChampionMonsterMgr.h b/Source/Contents/Monster/ChampionMonsterMgr.h
index 2cb18d84c..789adb9c8 100644
--- a/Source/Contents/Monster/ChampionMonsterMgr.h
+++ b/Source/Contents/Monster/ChampionMonsterMgr.h
@@ -25,7 +25,8 @@ public:
   };
 
   // INLINED
-  CChampionMonsterMgr() : m_isValid(true) {
+  CChampionMonsterMgr() {
+    this->m_isValid = true;
   }
   // INLINED
   virtual ~CChampionMonsterMgr() {