diff --git a/webapp/models/Hero.php b/webapp/models/Hero.php
index 3efe3fb1..2a3ed299 100644
--- a/webapp/models/Hero.php
+++ b/webapp/models/Hero.php
@@ -26,6 +26,7 @@ class Hero extends BaseModel {
     const LEVEL_LOCK = 1;
     const QUALITY_LOCK = 2;
     const SEND_LOCK = 3;
+    const COST_LOCK = 4;
 
     public static function find($heroUniId)
     {