diff --git a/device-types/Generic/shelf-1he-full-depth.yaml b/device-types/Generic/shelf-1he-full-depth.yaml
index e3a880b7..70ac944d 100644
--- a/device-types/Generic/shelf-1he-full-depth.yaml
+++ b/device-types/Generic/shelf-1he-full-depth.yaml
@@ -6,3 +6,7 @@ u_height: 1
 is_full_depth: true
 airflow: passive
 is_powered: false
+subdevice_role: parent
+device-bays:
+  - name: A
+  - name: B