diff --git a/Rover/GCS_Mavlink.cpp b/Rover/GCS_Mavlink.cpp
index db6904cc51..8bcf27275d 100644
--- a/Rover/GCS_Mavlink.cpp
+++ b/Rover/GCS_Mavlink.cpp
@@ -565,11 +565,6 @@ bool GCS_MAVLINK_Rover::handle_guided_request(AP_Mission::Mission_Command &cmd)
     return rover.mode_guided.set_desired_location(cmd.content.location);
 }
 
-void GCS_MAVLINK_Rover::handle_change_alt_request(AP_Mission::Mission_Command &cmd)
-{
-    // nothing to do
-}
-
 MAV_RESULT GCS_MAVLINK_Rover::_handle_command_preflight_calibration(const mavlink_command_long_t &packet)
 {
     if (is_equal(packet.param6, 1.0f)) {
diff --git a/Rover/GCS_Mavlink.h b/Rover/GCS_Mavlink.h
index ec0cbb9a90..2b900f2f6d 100644
--- a/Rover/GCS_Mavlink.h
+++ b/Rover/GCS_Mavlink.h
@@ -35,7 +35,6 @@ private:
 
     void handleMessage(const mavlink_message_t &msg) override;
     bool handle_guided_request(AP_Mission::Mission_Command &cmd) override;
-    void handle_change_alt_request(AP_Mission::Mission_Command &cmd) override;
     bool try_send_message(enum ap_message id) override;
 
     void handle_manual_control(const mavlink_message_t &msg);