diff --git a/Tools/scripts/build_options.py b/Tools/scripts/build_options.py
index 36da281763..eb5d07ba85 100644
--- a/Tools/scripts/build_options.py
+++ b/Tools/scripts/build_options.py
@@ -86,6 +86,8 @@ BUILD_OPTIONS = [
 
     Feature('ICE', 'ICE Engine', 'AP_ICENGINE_ENABLED', 'Enable Internal Combustion Engine support', 0, 'RPM'),
     Feature('ICE', 'EFI', 'HAL_EFI_ENABLED', 'Enable EFI Monitoring', 0, None),
+    Feature('ICE', 'EFI_MegaSquirt', 'AP_EFI_SERIAL_MS_ENABLED', 'Enable EFI MegaSquirt', 0, 'EFI'),
+    Feature('ICE', 'EFI_Lutan', 'AP_EFI_SERIAL_LUTAN_ENABLED', 'Enable EFI Lutan', 0, 'EFI'),
     Feature('ICE', 'EFI_NMPWU', 'AP_EFI_NWPWU_ENABLED', 'Enable EFI NMPMU', 0, 'EFI'),
     Feature('ICE', 'EFI_CURRAWONGECU', 'AP_EFI_CURRAWONG_ECU_ENABLED', 'Enable EFI Currawong ECU', 0, 'EFI'),
     Feature('ICE', 'EFI_DRONECAN', 'AP_EFI_DRONECAN_ENABLED', 'Enable EFI DroneCAN', 0, 'EFI'),