diff --git a/libraries/AP_InertialSensor/AP_InertialSensor.cpp b/libraries/AP_InertialSensor/AP_InertialSensor.cpp
index 77073b0eab..1d913aa512 100644
--- a/libraries/AP_InertialSensor/AP_InertialSensor.cpp
+++ b/libraries/AP_InertialSensor/AP_InertialSensor.cpp
@@ -519,7 +519,6 @@ const AP_Param::GroupInfo AP_InertialSensor::var_info[] = {
     // @DisplayName: Fast sampling mask
     // @Description: Mask of IMUs to enable fast sampling on, if available
     // @User: Advanced
-    // @Values: 1:FirstIMUOnly,3:FirstAndSecondIMU
     // @Bitmask: 0:FirstIMU,1:SecondIMU,2:ThirdIMU
     AP_GROUPINFO("FAST_SAMPLE",  36, AP_InertialSensor, _fast_sampling_mask,   HAL_DEFAULT_INS_FAST_SAMPLE),
 
@@ -535,7 +534,6 @@ const AP_Param::GroupInfo AP_InertialSensor::var_info[] = {
     // @DisplayName: IMU enable mask
     // @Description: Bitmask of IMUs to enable. It can be used to prevent startup of specific detected IMUs
     // @User: Advanced
-    // @Values: 1:FirstIMUOnly,3:FirstAndSecondIMU,7:FirstSecondAndThirdIMU,127:AllIMUs
     // @Bitmask: 0:FirstIMU,1:SecondIMU,2:ThirdIMU
     AP_GROUPINFO("ENABLE_MASK",  40, AP_InertialSensor, _enable_mask, 0x7F),
 
diff --git a/libraries/AP_InertialSensor/BatchSampler.cpp b/libraries/AP_InertialSensor/BatchSampler.cpp
index 158c00c990..9d52a0d9a0 100644
--- a/libraries/AP_InertialSensor/BatchSampler.cpp
+++ b/libraries/AP_InertialSensor/BatchSampler.cpp
@@ -16,7 +16,6 @@ const AP_Param::GroupInfo AP_InertialSensor::BatchSampler::var_info[] = {
     // @DisplayName: Sensor Bitmask
     // @Description: Bitmap of which IMUs to log batch data for. This option takes effect on the next reboot.
     // @User: Advanced
-    // @Values: 0:None,1:First IMU,255:All
     // @Bitmask: 0:IMU1,1:IMU2,2:IMU3
     // @RebootRequired: True
     AP_GROUPINFO("BAT_MASK",  2, AP_InertialSensor::BatchSampler, _sensor_mask,   DEFAULT_IMU_LOG_BAT_MASK),