diff --git a/packages/arcgis-rest-portal/src/items/export.ts b/packages/arcgis-rest-portal/src/items/export.ts
index a6bfa61599..b4bc98c7fe 100644
--- a/packages/arcgis-rest-portal/src/items/export.ts
+++ b/packages/arcgis-rest-portal/src/items/export.ts
@@ -14,14 +14,14 @@ export interface IExportLayerInfo {
 }
 
 export interface IExportParameters {
-  layers: IExportLayerInfo[];
+  layers?: IExportLayerInfo[];
   targetSR?: ISpatialReference | string;
 }
 
 export interface IExportItemRequestOptions extends IUserItemOptions {
   title?: string;
   exportFormat: ExportFormat;
-  exportParameters: IExportParameters;
+  exportParameters?: IExportParameters;
 }
 
 export interface IExportItemResponse {