diff --git a/openair2/COMMON/as_message.h b/openair2/COMMON/as_message.h
index f16fba2fbc3da7b2d1f487482194b9bcf8257715..3256468f099fcd7986bf0ae44a0b1a9261e81dd0 100644
--- a/openair2/COMMON/as_message.h
+++ b/openair2/COMMON/as_message.h
@@ -325,6 +325,7 @@ typedef struct nas_establish_rsp_s {
  * AS transfers the initial answer message to the NAS.
  */
 typedef struct nas_establish_cnf_s {
+    UInt32_t         UEid;            /* UE lower layer identifier   */
     nas_error_code_t errCode;         /* Transaction status          */
     as_nas_info_t    nasMsg;          /* NAS message to transfer     */
 } nas_establish_cnf_t;