diff --git a/include/td/game/Towers.h b/include/td/game/Towers.h
index 19dc243..4715855 100644
--- a/include/td/game/Towers.h
+++ b/include/td/game/Towers.h
@@ -82,9 +82,7 @@ class TowerLevel {
 	}
 };
 
-const TowerStats* GetTowerStats(TowerType type, TowerLevel level);
-
-typedef std::uint16_t TowerID;
+using TowerID = std::uint16_t;
 
 class TowerHandler;