1 files changed, 1 insertions, 0 deletions
diff --git a/airport.c b/airport.c
index 401e3ac5d..e8e5ce2dd 100644
--- a/airport.c
+++ b/airport.c
@@ -8,6 +8,7 @@
 #include "macros.h"
 #include "variables.h"
 #include "airport_movement.h"
+#include "date.h"
 
 static AirportFTAClass *CountryAirport;
 static AirportFTAClass *CityAirport;