diff --git a/src/engine_type.h b/src/engine_type.h
index 8a82b4b527..4b148b07c1 100644
--- a/src/engine_type.h
+++ b/src/engine_type.h
@@ -154,7 +154,6 @@ enum EngineFlags {
 	ENGINE_OFFER_WINDOW_OPEN = 4, ///< The exclusive offer window is currently open for a company.
 };
 
-static const uint NUM_VEHICLE_TYPES             =   6;
 static const uint MAX_LENGTH_ENGINE_NAME_CHARS  =  32; ///< The maximum length of an engine name in characters including '\0'
 static const uint MAX_LENGTH_ENGINE_NAME_PIXELS = 160; ///< The maximum length of an engine name in pixels