diff --git a/device-types/HPE/Primera-4U-Enclosure.yaml b/device-types/HPE/Primera-4U-Enclosure.yaml
index f72abf18..81337208 100644
--- a/device-types/HPE/Primera-4U-Enclosure.yaml
+++ b/device-types/HPE/Primera-4U-Enclosure.yaml
@@ -8,6 +8,7 @@ weight: 67
 weight_unit: kg
 airflow: front-to-rear
 is_full_depth: true
+subdevice_role: parent
 module-bays:
   - name: PSU0
     position: PSU0