diff --git a/server/gameserver/custom_battle.cc b/server/gameserver/custom_battle.cc
index 31e37c31..c9501952 100644
--- a/server/gameserver/custom_battle.cc
+++ b/server/gameserver/custom_battle.cc
@@ -16,3 +16,8 @@ void CustomBattle::ParseResult(a8::XObject& obj)
 {
 
 }
+
+bool CustomBattle::CanAdd(const std::string& account_id, const std::string& session_id)
+{
+    return true;
+}
diff --git a/server/gameserver/custom_battle.h b/server/gameserver/custom_battle.h
index 8216f303..277bb6fa 100644
--- a/server/gameserver/custom_battle.h
+++ b/server/gameserver/custom_battle.h
@@ -19,6 +19,7 @@ class CustomBattle
     int GetNodeId() { return zone_id_; }
     int GetStartTime() { return start_time_; }
     void ParseResult(a8::XObject& obj);
+    bool CanAdd(const std::string& account_id, const std::string& session_id);
 
  private:
     bool parse_ok_ = false;