diff --git a/openbsc/src/libmsc/gsm_04_08.c b/openbsc/src/libmsc/gsm_04_08.c
index 3cc86ba..fff902d 100644
--- a/openbsc/src/libmsc/gsm_04_08.c
+++ b/openbsc/src/libmsc/gsm_04_08.c
@@ -1235,7 +1235,7 @@
 	       osmo_hexdump_nospc(res, res_len));
 
 	/* Future: vlr_sub_rx_auth_resp(conn->vsub, is_r99,
-	 *				conn->via_iface == IFACE_IU,
+	 *				conn->via_ran == RAN_UTRAN_IU,
 	 *				res, res_len);
 	 */