diff --git a/ArduPlane/make.inc b/ArduPlane/make.inc
index 10ff73dd50f..167bfd813d8 100644
--- a/ArduPlane/make.inc
+++ b/ArduPlane/make.inc
@@ -49,6 +49,7 @@ LIBRARIES += AP_RSSI
 LIBRARIES += AP_RPM
 LIBRARIES += AP_Parachute
 LIBRARIES += AP_ADSB
+LIBRARIES += AP_Avoidance
 LIBRARIES += AP_Motors
 LIBRARIES += AC_AttitudeControl
 LIBRARIES += AC_PID
diff --git a/ArduPlane/wscript b/ArduPlane/wscript
index 482bc66efc2..0e3f71c6335 100644
--- a/ArduPlane/wscript
+++ b/ArduPlane/wscript
@@ -10,6 +10,7 @@ def build(bld):
             'APM_Control',
             'AP_AdvancedFailsafe',
             'AP_ADSB',
+            'AP_Avoidance',
             'AP_Arming',
             'AP_Camera',
             'AP_Frsky_Telem',