diff --git a/openair2/ENB_APP/MESSAGES/V2/config_messages.proto b/openair2/ENB_APP/MESSAGES/V2/config_messages.proto
index 995865f1ab533e79d70aa71b8774ea303fed0c55..f734686f011dcb1899a3bb95a52a92f4c6076572 100644
--- a/openair2/ENB_APP/MESSAGES/V2/config_messages.proto
+++ b/openair2/ENB_APP/MESSAGES/V2/config_messages.proto
@@ -81,6 +81,7 @@ message flex_ue_config {
 	optional uint32 pcell_carrier_index = 27;     // Index of primary cell
 	repeated flex_scell_config scell_config = 28;  // Secondary cells configuration
 	optional uint32 scell_deactivation_timer = 29;// Deactivation timer for secondary cell
+	optional uint64 imsi = 30;
 }
 
 message flex_lc_ue_config {
diff --git a/openair2/ENB_APP/flexran_agent_common.c b/openair2/ENB_APP/flexran_agent_common.c
index c663d5cad1bd6281243150fd996ceb5441a0a7f8..6d32aeedbb152facec421b7cfc4d176177320a6e 100644
--- a/openair2/ENB_APP/flexran_agent_common.c
+++ b/openair2/ENB_APP/flexran_agent_common.c
@@ -589,6 +589,8 @@ int flexran_agent_ue_config_reply(mid_t mod_id, const void *params, Protocol__Fl
 
       ue_config[i]->rnti = flexran_get_ue_crnti(mod_id,i);
       ue_config[i]->has_rnti = 1;
+      ue_config[i]->imsi = flexran_get_ue_imsi(mod_id, i);
+      ue_config[i]->has_imsi = 1;
       //TODO: Set the DRX configuration (optional)
       //Not supported for now, so we do not set it