diff --git a/libraries/AP_HAL_ChibiOS/hwdef/CUAV_GPS/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/CUAV_GPS/hwdef.dat
index 8c422b5b87..de579206ce 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/CUAV_GPS/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/CUAV_GPS/hwdef.dat
@@ -80,7 +80,7 @@ define HAL_I2C_INTERNAL_MASK 0
 I2C_ORDER I2C3
 
 # IST compass
-COMPASS IST8310 I2C:0:0x0E false ROTATION_NONE
+COMPASS IST8310 I2C:0:0x0E false ROTATION_ROLL_180_YAW_90
 
 # BMP388 baro
 BARO BMP388 I2C:0:0x76