diff --git a/mmv1/products/servicedirectory/api.yaml b/mmv1/products/servicedirectory/api.yaml
index 3723d861410b..8855f66ec623 100644
--- a/mmv1/products/servicedirectory/api.yaml
+++ b/mmv1/products/servicedirectory/api.yaml
@@ -142,6 +142,7 @@ objects:
     parameters:
       - !ruby/object:Api::Type::String
         name: 'service'
+        input: true
         description: |
           The resource name of the service that this endpoint provides.
         required: true