1 files changed, 1 insertions, 0 deletions
diff --git a/src/roadveh.h b/src/roadveh.h
index ec1e0354f..340a74076 100644
--- a/src/roadveh.h
+++ b/src/roadveh.h
@@ -40,6 +40,7 @@ struct RoadVehicle : public Vehicle {
 
 	const char *GetTypeString() { return "road vehicle"; }
 	void MarkDirty();
+	void UpdateDeltaXY(Direction direction);
 };
 
 #endif /* ROADVEH_H */