diff --git a/src/engine_base.h b/src/engine_base.h
--- a/src/engine_base.h
+++ b/src/engine_base.h
@@ -12,11 +12,9 @@
 #ifndef ENGINE_BASE_H
 #define ENGINE_BASE_H
 
-#include "company_type.h"
 #include "engine_type.h"
 #include "vehicle_type.h"
 #include "core/pool_type.hpp"
-#include "core/smallvec_type.hpp"
 #include "newgrf_commons.h"
 
 typedef Pool<Engine, EngineID, 64, 64000> EnginePool;