--- a/order_gui.c	Tue Nov 15 08:49:46 2005 +0000
+++ b/order_gui.c	Tue Nov 15 09:00:02 2005 +0000
@@ -472,7 +472,7 @@
 	}
 
 	case WE_RCLICK: {
-		Vehicle* v = GetVehicle(w->window_number);
+		const Vehicle* v = GetVehicle(w->window_number);
 		int s = OrderGetSel(w);
 
 		if (e->click.widget != 8) break;