diff --git a/Tools/scripts/build_options.py b/Tools/scripts/build_options.py
index 9466644adf150..36f48e34a58b7 100644
--- a/Tools/scripts/build_options.py
+++ b/Tools/scripts/build_options.py
@@ -291,7 +291,7 @@ def __init__(self,
     Feature('Sensors', 'RPM', 'AP_RPM_ENABLED', 'Enable RPM sensors', 0, None),
     Feature('Sensors', 'RPM_EFI', 'AP_RPM_EFI_ENABLED', 'Enable RPM EFI sensors', 0, 'RPM,EFI'),
     Feature('Sensors', 'RPM_ESC_TELEM', 'AP_RPM_ESC_TELEM_ENABLED', 'Enable RPM ESC Telemetry sensors', 0, 'RPM'),
-    Feature('Sensors', 'RPM_HARMONIC_NOTCH', 'AP_RPM_HARMONICNOTCH_ENABLED', 'Enable RPM Harmonic Notch sensors', 0, 'RPM'),  # noqa
+    Feature('Sensors', 'RPM_HARMONIC_NOTCH', 'AP_RPM_HARMONICNOTCH_ENABLED', 'Enable RPM Harmonic Notch sensors', 0, 'RPM,HarmonicNotches'),  # noqa
     Feature('Sensors', 'RPM_PIN', 'AP_RPM_PIN_ENABLED', 'Enable RPM Pin-based sensors', 0, 'RPM'),
     Feature('Sensors', 'RPM_GENERATOR', 'AP_RPM_GENERATOR_ENABLED', 'Enable Generator RPM sensors', 0, 'RPM,GENERATOR'),
 
@@ -305,6 +305,7 @@ def __init__(self,
     Feature('Sensors', 'GPS_MOVING_BASELINE', 'GPS_MOVING_BASELINE', 'Enable GPS Moving Baseline', 0, None),
     Feature('Sensors', 'IMU_ON_UART', 'AP_SERIALMANAGER_IMUOUT_ENABLED', 'Enable sending raw IMU data on a serial port', 0, None), # NOQA: E501
 
+    Feature('Other', 'HarmonicNotches', 'AP_INERTIALSENSOR_HARMONICNOTCH_ENABLED', 'Enable InertialSensor Harmonic Notches', 0, None),  # noqa
     Feature('Other', 'GyroFFT', 'HAL_GYROFFT_ENABLED', 'Enable In-Flight Gyro FFT calculations', 0, None),
     Feature('Other', 'DISPLAY', 'HAL_DISPLAY_ENABLED', 'Enable I2C Displays', 0, None),
     Feature('Other', 'NMEA_OUTPUT', 'HAL_NMEA_OUTPUT_ENABLED', 'Enable NMEA Output', 0, None),
diff --git a/Tools/scripts/extract_features.py b/Tools/scripts/extract_features.py
index af9085edc4b79..55db1039a595a 100755
--- a/Tools/scripts/extract_features.py
+++ b/Tools/scripts/extract_features.py
@@ -192,6 +192,7 @@ def __init__(self, filename, nm="arm-none-eabi-nm", strings="strings"):
             ('AP_DRONECAN_SEND_GPS', r'AP_GPS_DroneCAN::instance_exists\b',),
 
             ('HAL_WITH_DSP', r'AP_HAL::DSP::find_peaks\b',),
+            ('AP_INERTIALSENSOR_HARMONICNOTCH_ENABLED', r'AP_InertialSensor::HarmonicNotch::update_params\b',),
             ('HAL_GYROFFT_ENABLED', r'AP_GyroFFT::AP_GyroFFT\b',),
             ('HAL_DISPLAY_ENABLED', r'Display::init\b',),
             ('HAL_NMEA_OUTPUT_ENABLED', r'AP_NMEA_Output::update\b',),