diff --git a/code/API_definitions/device-data-volume-subscriptions.yaml b/code/API_definitions/device-data-volume-subscriptions.yaml
index 677c835..02e33a0 100644
--- a/code/API_definitions/device-data-volume-subscriptions.yaml
+++ b/code/API_definitions/device-data-volume-subscriptions.yaml
@@ -428,6 +428,8 @@ components:
           $ref: "../common/CAMARA_event_common.yaml#/components/schemas/Protocol"
         sink:
           $ref: "#/components/schemas/Sink"
+        sinkCredential:
+          $ref: "../common/CAMARA_event_common.yaml#/components/schemas/SinkCredential"
         types:
           description: |
             Camara Event types eligible to be delivered by this subscription for device data volume.