diff --git a/server/gameserver/mt/MapMode.h b/server/gameserver/mt/MapMode.h
index 949964e5..a386ef99 100644
--- a/server/gameserver/mt/MapMode.h
+++ b/server/gameserver/mt/MapMode.h
@@ -7,6 +7,7 @@ namespace mt
 {
     const int kPvpRankMode = 401;
     const int kTreasureBoxMode = 501;
+    const int kCircuitMatchMode = 601;
 
     DECLARE_ID_TABLE(MapMode, mtb::MapMode,
                      "mapMode@mapMode.json",