diff --git a/ArduCopter/make.inc b/ArduCopter/make.inc
index 0b47b9f0ce..224e127d90 100644
--- a/ArduCopter/make.inc
+++ b/ArduCopter/make.inc
@@ -8,7 +8,6 @@ LIBRARIES += GCS_MAVLink
 LIBRARIES += AP_SerialManager
 LIBRARIES += AP_GPS
 LIBRARIES += DataFlash
-LIBRARIES += AP_ADC
 LIBRARIES += AP_Baro
 LIBRARIES += AP_Compass
 LIBRARIES += AP_Math