diff --git a/js/file_management/provider_base.d.ts b/js/file_management/provider_base.d.ts
index 28aa33a9d16b..1b9bb26656ea 100644
--- a/js/file_management/provider_base.d.ts
+++ b/js/file_management/provider_base.d.ts
@@ -148,11 +148,10 @@ export default class FileSystemProviderBase {
      * @docid FileSystemProviderBaseMethods.downloadItems
      * @publicName downloadItems()
      * @param1 items:Array<FileSystemItem>
-     * @return any
      * @prevFileNamespace DevExpress.fileManagement
      * @public
      */
-    downloadItems(items: Array<FileSystemItem>): any;
+    downloadItems(items: Array<FileSystemItem>): void;
 
     /**
      * @docid FileSystemProviderBaseMethods.getItemsContent
diff --git a/ts/dx.all.d.ts b/ts/dx.all.d.ts
index 14de50f63da3..abb67834c685 100644
--- a/ts/dx.all.d.ts
+++ b/ts/dx.all.d.ts
@@ -1746,7 +1746,7 @@ declare module DevExpress.fileManagement {
         /** @name FileSystemProviderBase.deleteItems() */
         deleteItems(items: Array<FileSystemItem>): Array<Promise<any> | JQueryPromise<any>>;
         /** @name FileSystemProviderBase.downloadItems() */
-        downloadItems(items: Array<FileSystemItem>): any;
+        downloadItems(items: Array<FileSystemItem>): void;
         /** @name FileSystemProviderBase.getItems() */
         getItems(parentDirectory: FileSystemItem): Promise<Array<any>> & JQueryPromise<Array<any>>;
         /** @name FileSystemProviderBase.getItemsContent() */