diff --git a/AntennaTracker/GCS_Mavlink.cpp b/AntennaTracker/GCS_Mavlink.cpp
index e876c12979..abee8249d9 100644
--- a/AntennaTracker/GCS_Mavlink.cpp
+++ b/AntennaTracker/GCS_Mavlink.cpp
@@ -835,4 +835,5 @@ Compass *GCS_MAVLINK_Tracker::get_compass() const
 void AP_Camera::control_msg(mavlink_message_t const*) {}
 void AP_Camera::configure(float, float, float, float, float, float, float) {}
 void AP_Camera::control(float, float, float, float, float, float) {}
+void AP_Camera::send_feedback(mavlink_channel_t chan) {}
 /* end dummy methods to avoid having to link against AP_Camera */