diff --git a/openair-cn/NAS/nas_main.c b/openair-cn/NAS/nas_main.c
index 3f2ac57577ce83ba630da30c5462b3c4357c24ee..7dcbdbb1bcf8f0bf290066c669eb1f043e7ce580 100644
--- a/openair-cn/NAS/nas_main.c
+++ b/openair-cn/NAS/nas_main.c
@@ -126,7 +126,11 @@ next_message:
     break;
 
     case NAS_DOWNLINK_DATA_CNF: {
-      //                 nas_proc_dl_transfer_cnf(NAS_DL_DATA_CNF(received_message_p).UEid);
+      nas_proc_dl_transfer_cnf(NAS_DL_DATA_CNF(received_message_p).UEid);
+    } break;
+
+    case NAS_NON_DELIVERY_IND: {
+      nas_proc_dl_transfer_rej(NAS_DL_DATA_REJ(received_message_p).UEid);
     } break;
 
     case NAS_AUTHENTICATION_PARAM_RSP: {