diff --git a/AntennaTracker/Tracker.h b/AntennaTracker/Tracker.h
index af83d3a884..a31a6de98c 100644
--- a/AntennaTracker/Tracker.h
+++ b/AntennaTracker/Tracker.h
@@ -34,7 +34,6 @@
 #include <AP_Baro/AP_Baro.h>        // ArduPilot barometer library
 #include <AP_Compass/AP_Compass.h>     // ArduPilot Mega Magnetometer Library
 #include <AP_Math/AP_Math.h>        // ArduPilot Mega Vector/Matrix math Library
-#include <AP_ADC/AP_ADC.h>         // ArduPilot Mega Analog to Digital Converter Library
 #include <AP_InertialSensor/AP_InertialSensor.h> // Inertial Sensor Library
 #include <AP_AccelCal/AP_AccelCal.h>                // interface and maths for accelerometer calibration
 #include <AP_AHRS/AP_AHRS.h>         // ArduPilot Mega DCM Library