diff --git a/libraries/AP_HAL_ChibiOS/hwdef/f103-periph/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/f103-periph/hwdef.dat
index 3403879e36..b15e3e3a95 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/f103-periph/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/f103-periph/hwdef.dat
@@ -127,7 +127,7 @@ define HAL_BUILD_AP_PERIPH
 # only one I2C bus
 I2C_ORDER I2C1
 
-COMPASS RM3100 SPI:rm3100 ROTATION_NONE
+COMPASS RM3100 SPI:rm3100 false ROTATION_NONE
 
 define HAL_I2C_CLEAR_ON_TIMEOUT 0