diff --git a/libraries/AP_HAL_ChibiOS/hwdef/CarbonixCommon/sitl_params/volanti-headless.parm b/libraries/AP_HAL_ChibiOS/hwdef/CarbonixCommon/sitl_params/volanti-headless.parm
index ec2431dbdb..f3c30bec40 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/CarbonixCommon/sitl_params/volanti-headless.parm
+++ b/libraries/AP_HAL_ChibiOS/hwdef/CarbonixCommon/sitl_params/volanti-headless.parm
@@ -12,6 +12,7 @@ BATT2_VOLT_MULT,40.4
 BATT3_AMP_PERVLT,12.75
 BATT3_MONITOR,4
 BATT3_VOLT_MULT,40.4
+@delete CAN_*
 GPS_TYPE,1
 GPS_TYPE2,1
 @delete INS_*
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/CarbonixCommon/sitl_params/volanti-realflight.parm b/libraries/AP_HAL_ChibiOS/hwdef/CarbonixCommon/sitl_params/volanti-realflight.parm
index e722d32a2e..52b8c91437 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/CarbonixCommon/sitl_params/volanti-realflight.parm
+++ b/libraries/AP_HAL_ChibiOS/hwdef/CarbonixCommon/sitl_params/volanti-realflight.parm
@@ -19,6 +19,7 @@ BATT3_MONITOR,4
 BATT3_VOLT_MULT,10.1
 BATT3_VOLT_PIN,13
 BATT4_MONITOR,0
+@delete CAN_*
 GPS_TYPE,1
 GPS_TYPE2,1
 @delete INS_*