diff --git a/openair-cn/S1AP/s1ap_eNB_nas_procedures.c b/openair-cn/S1AP/s1ap_eNB_nas_procedures.c
index a7cc31a9cc2e710fc16aa713fa2776d0d7c06526..410a5ccac28c2004b57af9fb1ce3c126d8d952dd 100644
--- a/openair-cn/S1AP/s1ap_eNB_nas_procedures.c
+++ b/openair-cn/S1AP/s1ap_eNB_nas_procedures.c
@@ -370,8 +370,6 @@ void s1ap_eNB_nas_non_delivery_ind(instance_t instance,
         return;
     }
 
-    DevAssert(ue_context_p->ue_state == S1AP_UE_CONNECTED);
-
     /* Prepare the S1AP message to encode */
     memset(&message, 0, sizeof(s1ap_message));
 
@@ -391,6 +389,10 @@ void s1ap_eNB_nas_non_delivery_ind(instance_t instance,
     nas_non_delivery_p->nas_pdu.buf    = s1ap_nas_non_delivery_ind->nas_pdu.buffer;
     nas_non_delivery_p->nas_pdu.size   = s1ap_nas_non_delivery_ind->nas_pdu.length;
 
+    /* Send a dummy cause */
+    nas_non_delivery_p->cause.present = S1ap_Cause_PR_radioNetwork;
+    nas_non_delivery_p->cause.choice.radioNetwork = S1ap_CauseRadioNetwork_radio_connection_with_ue_lost;
+
     /* UE associated signalling -> use the allocated stream */
     s1ap_eNB_itti_send_sctp_data_req(s1ap_eNB_instance_p->instance,
                                      ue_context_p->mme_ref->assoc_id, buffer,