diff --git a/config-models/aether-2.0.x/files/yang/onf-device.yang b/config-models/aether-2.0.x/files/yang/onf-device.yang
index cf4ad10..3a8abd8 100644
--- a/config-models/aether-2.0.x/files/yang/onf-device.yang
+++ b/config-models/aether-2.0.x/files/yang/onf-device.yang
@@ -5,7 +5,6 @@
 submodule onf-device {
   belongs-to onf-enterprise { prefix ent; }
 
-  import ietf-yang-types{ prefix yg; }
   import onf-aether-types { prefix at; }
   include onf-sim-card;
 
@@ -20,9 +19,7 @@
   }
 
   typedef device-id {
-        type yg:yang-identifier {
-            length 1..32;
-        }
+    type at:aether-identifier;
     description "The typedef for device-id";
   }