diff --git a/libraries/AP_HAL_ChibiOS/hwdef/fmuv4/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/fmuv4/hwdef.dat
index 313e4cb7da..365649cfb8 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/fmuv4/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/fmuv4/hwdef.dat
@@ -171,6 +171,7 @@ SPIDEV ramtron     SPI2 DEVID10 FRAM_CS    MODE3   8*MHZ   8*MHZ
 define HAL_CHIBIOS_ARCH_FMUV4 1
 
 define HAL_BOARD_LOG_DIRECTORY "/APM/LOGS"
+define HAL_BOARD_TERRAIN_DIRECTORY "/APM/TERRAIN"
 
 define HAL_STORAGE_SIZE        16384
 
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/mindpx-v2/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/mindpx-v2/hwdef.dat
index 1c3c1ec917..da8605bc52 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/mindpx-v2/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/mindpx-v2/hwdef.dat
@@ -172,6 +172,7 @@ SPIDEV radio      SPI2  DEVID6 NRF_CS       MODE3   2*MHZ  2*MHZ
 define HAL_CHIBIOS_ARCH_MINDPXV2 1
 
 define HAL_BOARD_LOG_DIRECTORY "/APM/LOGS"
+define HAL_BOARD_TERRAIN_DIRECTORY "/APM/TERRAIN"
 
 define HAL_STORAGE_SIZE 16384
 
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/mini-pix/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/mini-pix/hwdef.dat
index 832a3ba23e..e40ee0594a 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/mini-pix/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/mini-pix/hwdef.dat
@@ -125,6 +125,7 @@ define HAL_COMPASS_QMC5883L_ORIENTATION_INTERNAL ROTATION_PITCH_180_YAW_270
 define HAL_COMPASS_AUTO_ROT_DEFAULT 2
 
 define HAL_BOARD_LOG_DIRECTORY "/APM/LOGS"
+define HAL_BOARD_TERRAIN_DIRECTORY "/APM/TERRAIN"
 
 define HAL_STORAGE_SIZE        16384