diff --git a/src/order_gui.cpp b/src/order_gui.cpp
--- a/src/order_gui.cpp
+++ b/src/order_gui.cpp
@@ -20,7 +20,6 @@
 #include "vehicle_gui.h"
 #include "timetable.h"
 #include "cargotype.h"
-#include "order.h"
 #include "strings_func.h"
 #include "window_func.h"
 #include "vehicle_func.h"