diff --git a/src/newgrf_object.cpp b/src/newgrf_object.cpp
--- a/src/newgrf_object.cpp
+++ b/src/newgrf_object.cpp
@@ -12,8 +12,8 @@
 #include "company_func.h"
 #include "debug.h"
 #include "genworld.h"
+#include "newgrf_object.h"
 #include "newgrf_class_func.h"
-#include "newgrf_object.h"
 #include "newgrf_sound.h"
 #include "object_base.h"
 #include "object_map.h"