diff --git a/libraries/AP_RangeFinder/examples/RFIND_test/make.inc b/libraries/AP_RangeFinder/examples/RFIND_test/make.inc
index 3d8e5b8c7b..668690445b 100644
--- a/libraries/AP_RangeFinder/examples/RFIND_test/make.inc
+++ b/libraries/AP_RangeFinder/examples/RFIND_test/make.inc
@@ -8,6 +8,7 @@ LIBRARIES += AP_Compass
 LIBRARIES += AP_Declination
 LIBRARIES += AP_GPS
 LIBRARIES += AP_InertialSensor
+LIBRARIES += AP_AccelCal
 LIBRARIES += AP_Math
 LIBRARIES += AP_Mission
 LIBRARIES += AP_NavEKF