diff --git a/ArduSub/Sub.h b/ArduSub/Sub.h
index a139d04b47..f27f306290 100644
--- a/ArduSub/Sub.h
+++ b/ArduSub/Sub.h
@@ -38,7 +38,6 @@
 #include <AP_SerialManager/AP_SerialManager.h>   // Serial manager library
 #include <AP_GPS/AP_GPS.h>             // ArduPilot GPS library
 #include <DataFlash/DataFlash.h>          // ArduPilot Mega Flash Memory Library
-#include <AP_ADC/AP_ADC.h>             // ArduPilot Mega Analog to Digital Converter Library
 #include <AP_Baro/AP_Baro.h>
 #include <AP_Compass/AP_Compass.h>         // ArduPilot Mega Magnetometer Library
 #include <AP_Math/AP_Math.h>            // ArduPilot Mega Vector/Matrix math Library
diff --git a/ArduSub/make.inc b/ArduSub/make.inc
index f1e0e1a5dd..f9281f40fe 100644
--- a/ArduSub/make.inc
+++ b/ArduSub/make.inc
@@ -6,7 +6,6 @@ LIBRARIES += GCS_MAVLink
 LIBRARIES += AP_SerialManager
 LIBRARIES += AP_GPS
 LIBRARIES += DataFlash
-LIBRARIES += AP_ADC
 LIBRARIES += AP_Baro
 LIBRARIES += AP_Compass
 LIBRARIES += AP_Math