diff --git a/app/controllers/api/submissions_controller.rb b/app/controllers/api/submissions_controller.rb
index aecd5431..49028684 100644
--- a/app/controllers/api/submissions_controller.rb
+++ b/app/controllers/api/submissions_controller.rb
@@ -167,8 +167,9 @@ module Api
           submitters: [[:send_email, :send_sms, :completed_redirect_url, :uuid, :name, :email, :role,
                         :completed, :phone, :application_key, :external_id, :reply_to,
                         { metadata: {}, values: {}, readonly_fields: [], message: %i[subject body],
-                          fields: [%i[name default_value title description
-                                      readonly validation_pattern invalid_message]] }]]
+                          fields: [:name, :default_value, :title, :description,
+                                   :readonly, :validation_pattern, :invalid_message,
+                                   { default_value: [] }] }]]
         }
       ]
 
diff --git a/app/controllers/api/submitters_controller.rb b/app/controllers/api/submitters_controller.rb
index 3d2c3567..2c4c74fe 100644
--- a/app/controllers/api/submitters_controller.rb
+++ b/app/controllers/api/submitters_controller.rb
@@ -76,7 +76,8 @@ module Api
         :send_email, :send_sms, :uuid, :name, :email, :role,
         :completed, :phone, :application_key, :external_id,
         { metadata: {}, values: {}, readonly_fields: [], message: %i[subject body],
-          fields: [%i[name default_value readonly validation_pattern invalid_message]] }
+          fields: [[:name, :default_value, :readonly, :validation_pattern, :invalid_message,
+                    { default_value: [] }]] }
       )
     end