diff --git a/companion/src/eeprominterface.h b/companion/src/eeprominterface.h
index b0d1457da..bcc8ec6c4 100644
--- a/companion/src/eeprominterface.h
+++ b/companion/src/eeprominterface.h
@@ -994,6 +994,7 @@ class SensorData {
     SensorData() { clear(); }
     unsigned int type; // custom / formula
     unsigned int id;
+    unsigned int subid;
     unsigned int instance;
     unsigned int persistentValue;
     unsigned int formula;
diff --git a/companion/src/firmwares/opentx/opentxeeprom.cpp b/companion/src/firmwares/opentx/opentxeeprom.cpp
index bebd4048f..be9548e95 100644
--- a/companion/src/firmwares/opentx/opentxeeprom.cpp
+++ b/companion/src/firmwares/opentx/opentxeeprom.cpp
@@ -2902,7 +2902,7 @@ class SensorField: public TransformedField {
       internalField.Append(new BoolField<1>(sensor.logs));
       internalField.Append(new BoolField<1>(sensor.persistent));
       internalField.Append(new BoolField<1>(sensor.onlyPositive));
-      internalField.Append(new SpareBitsField<3>());
+      internalField.Append(new UnsignedField<3>(_subid, "subid"));
       internalField.Append(new UnsignedField<32>(_param, "param"));
     }
 
@@ -2910,6 +2910,7 @@ class SensorField: public TransformedField {
     {
       if (sensor.type == SensorData::TELEM_TYPE_CUSTOM) {
         _id = sensor.id;
+        _subid = sensor.subid;
         _instance = sensor.instance;
         _ratio = sensor.ratio;
         _offset = sensor.offset;
@@ -2932,6 +2933,7 @@ class SensorField: public TransformedField {
     {
       if (sensor.type == SensorData::TELEM_TYPE_CUSTOM) {
         sensor.id = _id;
+        sensor.subid = _subid;
         sensor.instance = _instance;
         sensor.ratio = _ratio;
         sensor.offset = _offset;
@@ -2956,6 +2958,7 @@ class SensorField: public TransformedField {
     StructField internalField;
     SensorData & sensor;
     unsigned int _id;
+    unsigned int _subid;
     unsigned int _instance;
     union {
       unsigned int _param;
diff --git a/companion/src/storage/storage_eeprom.cpp b/companion/src/storage/storage_eeprom.cpp
index 97dac8504..e265b4347 100644
--- a/companion/src/storage/storage_eeprom.cpp
+++ b/companion/src/storage/storage_eeprom.cpp
@@ -3,7 +3,7 @@
 #include "storage_eeprom.h"
 
 
-unsigned long LoadEeprom(RadioData &radioData, const uint8_t *eeprom, const int size)
+unsigned long LoadEeprom(RadioData & radioData, const uint8_t * eeprom, const int size)
 {
   std::bitset<NUM_ERRORS> errors;
 
@@ -64,7 +64,7 @@ unsigned long LoadEepromXml(RadioData & radioData, QDomDocument & doc)
   return errors.to_ulong();
 }
 
-bool convertEEprom(const QString &sourceEEprom, const QString &destinationEEprom, const QString &firmwareFilename)
+bool convertEEprom(const QString & sourceEEprom, const QString & destinationEEprom, const QString & firmwareFilename)
 {
   Firmware *currentFirmware = GetCurrentFirmware();
   FirmwareInterface firmware(firmwareFilename);