1 files changed, 1 insertions, 0 deletions
diff --git a/src/aircraft.h b/src/aircraft.h
index 0876fee7f..1baad94c7 100644
--- a/src/aircraft.h
+++ b/src/aircraft.h
@@ -131,6 +131,7 @@ struct Aircraft : public Vehicle {
 	virtual ~Aircraft() {}
 
 	const char *GetTypeString() { return "aircraft"; }
+	void MarkDirty();
 };
 
 #endif /* AIRCRAFT_H */