diff --git a/src/station_base.h b/src/station_base.h
--- a/src/station_base.h
+++ b/src/station_base.h
@@ -14,6 +14,7 @@
 
 #include "base_station_base.h"
 #include "airport.h"
+#include "newgrf_airport.h"
 #include "cargopacket.h"
 #include "industry_type.h"