diff --git a/backbone/backbone-global.d.ts b/backbone/backbone-global.d.ts
index 764aa83d7..c16e1a59e 100644
--- a/backbone/backbone-global.d.ts
+++ b/backbone/backbone-global.d.ts
@@ -43,6 +43,7 @@ declare module Backbone {
 
     interface PersistenceOptions {
         url?: string;
+        data?: any;
         beforeSend?: (jqxhr: JQueryXHR) => void;
         success?: (modelOrCollection?: any, response?: any, options?: any) => void;
         error?: (modelOrCollection?: any, jqxhr?: JQueryXHR, options?: any) => void;