diff --git a/Tools/scripts/build_options.py b/Tools/scripts/build_options.py
index c5be04d6a6..7dbfda7a23 100644
--- a/Tools/scripts/build_options.py
+++ b/Tools/scripts/build_options.py
@@ -121,6 +121,7 @@ BUILD_OPTIONS = [
     Feature('Compass', 'MAG3110', 'AP_COMPASS_MAG3110_ENABLED', 'Enable MAG3110 compasses', 1, None),
     Feature('Compass', 'MMC3416', 'AP_COMPASS_MMC3416_ENABLED', 'Enable MMC3416 compasses', 1, None),
     Feature('Compass', 'QMC5883L', 'AP_COMPASS_QMC5883L_ENABLED', 'Enable QMC5883L compasses', 1, None),
+    Feature('Compass', 'RM3100', 'AP_COMPASS_RM3100_ENABLED', 'Enable RM3100 compasses', 1, None),
     Feature('Compass', 'UAVCAN_COMPASS', 'AP_COMPASS_UAVCAN_ENABLED', 'Enable UAVCAN compasses', 0, None),
 
     Feature('Gimbal', 'MOUNT', 'HAL_MOUNT_ENABLED', 'Enable Mount', 0, None),