diff --git a/libraries/AP_HAL_ChibiOS/hwdef/GEPRCF745BTHD/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/GEPRCF745BTHD/hwdef.dat
index 1d84d2734a..5c0e43a2a8 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/GEPRCF745BTHD/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/GEPRCF745BTHD/hwdef.dat
@@ -170,5 +170,13 @@ ROMFS_WILDCARD libraries/AP_OSD/fonts/font0.bin
 # save some flash
 include ../include/minimize_fpv_osd.inc
 
+
+#only enable BMP280 Baro
+define AP_BARO_BACKEND_DEFAULT_ENABLED 0
+undef define AP_BARO_BMP280_ENABLED
+define AP_BARO_BMP280_ENABLED 1
+define AP_BARO_MS56XX_ENABLED 1
+
+# need to probe external baros even 'though we're minimised to allow custom build options:
 undef AP_BARO_PROBE_EXTERNAL_I2C_BUSES
 define AP_BARO_PROBE_EXTERNAL_I2C_BUSES 1