diff --git a/openair2/RRC/NR/rrc_gNB_NGAP.c b/openair2/RRC/NR/rrc_gNB_NGAP.c
index b22c5bc9e9..d5a4a336b6 100644
--- a/openair2/RRC/NR/rrc_gNB_NGAP.c
+++ b/openair2/RRC/NR/rrc_gNB_NGAP.c
@@ -778,7 +778,7 @@ void rrc_gNB_process_NGAP_PDUSESSION_SETUP_REQ(MessageDef *msg_p, instance_t ins
     for (int j=0; j < pdu->numDRB2Setup; j++) {
       DRB_nGRAN_to_setup_t *drb = pdu->DRBnGRanList + j;
 
-      drb->id = i + j + 1;
+      drb->id = i + j + UE->nb_of_pdusessions;
 
       drb->defaultDRB = E1AP_DefaultDRB_true;