diff --git a/device-types/Cisco/cdb-8p.yaml b/device-types/Cisco/cdb-8p.yaml
index 3706b816..6cc677a7 100644
--- a/device-types/Cisco/cdb-8p.yaml
+++ b/device-types/Cisco/cdb-8p.yaml
@@ -5,6 +5,7 @@ part_number: CDB-8P
 u_height: 0
 is_full_depth: false
 subdevice_role: child
+u_height: 0
 interfaces:
   - name: FastEthernet1/0/1
     type: 100base-tx
diff --git a/device-types/Cisco/cdb-8u.yaml b/device-types/Cisco/cdb-8u.yaml
index 5ba52b5b..00f03fef 100644
--- a/device-types/Cisco/cdb-8u.yaml
+++ b/device-types/Cisco/cdb-8u.yaml
@@ -4,6 +4,7 @@ slug: cdb-8u
 part_number: CDB-8U
 u_height: 0
 is_full_depth: false
+u_height: 0
 subdevice_role: child
 interfaces:
   - name: FastEthernet1/0/1