diff --git a/jquery.fileupload/index.d.ts b/jquery.fileupload/index.d.ts
index 8eba9853b2..54ebb89c5c 100644
--- a/jquery.fileupload/index.d.ts
+++ b/jquery.fileupload/index.d.ts
@@ -284,6 +284,7 @@ interface JQueryFileUploadXhr {
     jqXHR: JQueryXHR;
     result: any;
     textStatus: string;
+    headers: {[key: string]: any};
 }
 
 interface JQueryFileUploadFilesObject {