diff --git a/gazebo/SBUS.h b/gazebo/SBUS.h
index ca9c9ec..8d56d45 100644
--- a/gazebo/SBUS.h
+++ b/gazebo/SBUS.h
@@ -11,7 +11,7 @@ struct SBUSData {
 
 class SBUS {
 public:
-	SBUS(HardwareSerial& bus) {};
+	SBUS(HardwareSerial& bus, const bool inv = true) {};
 	void begin() {};
 	bool read() { return joystickGet(); };
 	SBUSData data() {