diff --git a/xos/synchronizer/models/rcord.xproto b/xos/synchronizer/models/rcord.xproto
index 4e43169..f3025d4 100644
--- a/xos/synchronizer/models/rcord.xproto
+++ b/xos/synchronizer/models/rcord.xproto
@@ -4,7 +4,7 @@
 
 message RCORDService (Service) {
     option verbose_name = "RCORD Service";
-    required string access = 11 [help_text = "Who is managing the Access Network", default = "voltha", choices = "(('voltha', 'VOLTHA'),)", max_length = 30, db_index = False];
+    required string access = 11 [help_text = "Who is managing the Access Network", default = "voltha", choices = "(('voltha', 'VOLTHA'), ('unknown', 'Unknown'))", max_length = 30, db_index = False];
 }
 
 message RCORDSubscriber (ServiceInstance) {