diff --git a/src/newgrf_class.h b/src/newgrf_class.h
--- a/src/newgrf_class.h
+++ b/src/newgrf_class.h
@@ -12,7 +12,6 @@
 
 #include "strings_type.h"
 
-#include <vector>
 
 /**
  * Struct containing information relating to NewGRF classes for stations and airports.