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-rw-r--r--src/station_func.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/station_func.h b/src/station_func.h
index 917314402..d2f66fc63 100644
--- a/src/station_func.h
+++ b/src/station_func.h
@@ -47,5 +47,6 @@ bool IsStationTileBlocked(TileIndex tile);
/* Check if a rail station tile is electrifiable. */
bool IsStationTileElectrifiable(TileIndex tile);
+void UpdateAirportsNoise();
#endif /* STATION_FUNC_H */