diff --git a/Rover/Rover.h b/Rover/Rover.h
index c5c8ea5ffe863..3bcca22c0b109 100644
--- a/Rover/Rover.h
+++ b/Rover/Rover.h
@@ -379,7 +379,6 @@ class Rover : public AP_Vehicle {
     bool set_mode(Mode &new_mode, ModeReason reason);
     bool set_mode(const uint8_t new_mode, ModeReason reason) override;
     uint8_t get_mode() const override { return (uint8_t)control_mode->mode_number(); }
-    bool mavlink_set_mode(uint8_t mode);
     void startup_INS_ground(void);
     void notify_mode(const Mode *new_mode);
     uint8_t check_digital_pin(uint8_t pin);