diff --git a/ArduSub/APM_Config.h b/ArduSub/APM_Config.h
index 3a657d1f43..8a656fc50b 100644
--- a/ArduSub/APM_Config.h
+++ b/ArduSub/APM_Config.h
@@ -28,10 +28,10 @@
 //#define NAV_GUIDED            DISABLED            // disable external navigation computer ability to control vehicle through MAV_CMD_NAV_GUIDED mission commands
 //#define OPTFLOW               DISABLED            // disable optical flow sensor to save 5K of flash space
 //#define FRSKY_TELEM_ENABLED   DISABLED            // disable FRSky telemetry
+#define PRECISION_LANDING     DISABLED             // enable precision landing using companion computer or IRLock sensor
 
 // features below are disabled by default on all boards
 //#define SPRAYER               ENABLED             // enable the crop sprayer feature (two ESC controlled pumps the speed of which depends upon the vehicle's horizontal velocity)
-//#define PRECISION_LANDING     ENABLED             // enable precision landing using companion computer or IRLock sensor
 //#define GNDEFFECT_COMPENSATION ENABLED            // enable ground effect compensation for barometer (if propwash interferes with the barometer on the ground)
 
 // other settings
diff --git a/ArduSub/config.h b/ArduSub/config.h
index c47e994bf7..6e1b81a424 100644
--- a/ArduSub/config.h
+++ b/ArduSub/config.h
@@ -264,7 +264,7 @@
 //////////////////////////////////////////////////////////////////////////////
 // Precision Landing with companion computer or IRLock sensor
 #ifndef PRECISION_LANDING
- # define PRECISION_LANDING DISABLED
+ # define PRECISION_LANDING ENABLED
 #endif
 
 //////////////////////////////////////////////////////////////////////////////