diff --git a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvTypes.aidl b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvTypes.aidl
index 8413f06..c3ac401 100644
--- a/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvTypes.aidl
+++ b/uwb/aidl/aidl_api/android.hardware.uwb.fira_android/current/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvTypes.aidl
@@ -40,6 +40,7 @@
   CCC_UWB_CONFIG_ID = 164,
   CCC_PULSESHAPE_COMBO = 165,
   CCC_URSK_TTL = 166,
+  CCC_LAST_INDEX_USED = 168,
   NB_OF_RANGE_MEASUREMENTS = 227,
   NB_OF_AZIMUTH_MEASUREMENTS = 228,
   NB_OF_ELEVATION_MEASUREMENTS = 229,
diff --git a/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvTypes.aidl b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvTypes.aidl
index f303ed9..65bb1c9 100644
--- a/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvTypes.aidl
+++ b/uwb/aidl/android/hardware/uwb/fira_android/UwbVendorSessionAppConfigTlvTypes.aidl
@@ -46,6 +46,8 @@
     CCC_PULSESHAPE_COMBO = 0xA5,
     /** 2 byte data */
     CCC_URSK_TTL = 0xA6,
+    /** 4 byte data */
+    CCC_LAST_INDEX_USED = 0xA8,
 
     /**
      * Range 0xE3 - 0xFF is reserved for proprietary use in the FIRA spec.