diff --git a/station_cmd.c b/station_cmd.c
index addb90a3e0..b31069bf33 100644
--- a/station_cmd.c
+++ b/station_cmd.c
@@ -60,8 +60,8 @@ MemoryPool _roadstop_pool = { "RoadStop", ROADSTOP_POOL_MAX_BLOCKS, ROADSTOP_POO
 
 // FIXME -- need to be embedded into Airport variable. Is dynamically
 // deducteable from graphics-tile array, so will not be needed
-const byte _airport_size_x[5] = {4, 6, 1, 6, 7 };
-const byte _airport_size_y[5] = {3, 6, 1, 6, 7 };
+const byte _airport_size_x[] = {4, 6, 1, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
+const byte _airport_size_y[] = {3, 6, 1, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
 
 void ShowAircraftDepotWindow(uint tile);
 extern void UpdateAirplanesOnNewStation(Station *st);
diff --git a/variables.h b/variables.h
index 07d23013c1..1f7dbf5874 100644
--- a/variables.h
+++ b/variables.h
@@ -427,8 +427,8 @@ extern const TileTypeProcs * const _tile_type_procs[16];
 /* station_cmd.c */
 // there are 5 types of airport (Country (3x4) , City(6x6), Metropolitan(6x6), International(7x7), Heliport(1x1)
 // will become obsolete once airports are loaded from seperate file
-extern const byte _airport_size_x[5];
-extern const byte _airport_size_y[5];
+extern const byte _airport_size_x[];
+extern const byte _airport_size_y[];
 
 /* misc */
 VARDEF char _screenshot_name[128];