diff --git a/include/openbsc/osmo_msc.h b/include/openbsc/osmo_msc.h
index 0642c91..5a26b60 100644
--- a/include/openbsc/osmo_msc.h
+++ b/include/openbsc/osmo_msc.h
@@ -51,6 +51,11 @@
 	return get_value_string(subscr_conn_from_names, val);
 }
 
+enum msc_compl_l3_rc {
+	MSC_CONN_ACCEPT = 0,
+	MSC_CONN_REJECT = 1,
+};
+
 
 struct bsc_api *msc_bsc_api();