diff --git a/src/definitions/SOL002SOL003VNFLifecycleManagement_def.yaml b/src/definitions/SOL002SOL003VNFLifecycleManagement_def.yaml
index 587e62dce6d194bf648445b1e6cbecc242c355f8..82847c3e96f481432315e439b5dcc4fdd350c777 100644
--- a/src/definitions/SOL002SOL003VNFLifecycleManagement_def.yaml
+++ b/src/definitions/SOL002SOL003VNFLifecycleManagement_def.yaml
@@ -712,6 +712,7 @@ definitions:
     required: 
       - id
       - notificationType
+      - subscriptionId
       - timeStamp
       - vnfInstanceId
       - _links