1 files changed, 1 insertions, 1 deletions
diff --git a/vehicle.h b/vehicle.h
index 4713cdca4..b6ea2b3a0 100644
--- a/vehicle.h
+++ b/vehicle.h
@@ -284,7 +284,7 @@ void VehicleInTheWayErrMsg(const Vehicle* v);
 Vehicle *FindVehicleBetween(TileIndex from, TileIndex to, byte z);
 TileIndex GetVehicleOutOfTunnelTile(const Vehicle *v);
 
-bool UpdateSignalsOnSegment(TileIndex tile, Direction direction);
+bool UpdateSignalsOnSegment(TileIndex tile, DiagDirection direction);
 void SetSignalsOnBothDir(TileIndex tile, byte track);
 
 Vehicle *CheckClickOnVehicle(const ViewPort *vp, int x, int y);