diff --git a/packages/filesystem/src/browser/download/file-download-service.ts b/packages/filesystem/src/browser/download/file-download-service.ts
index 2d8b72afdf7f1..6afa9a9b46c73 100644
--- a/packages/filesystem/src/browser/download/file-download-service.ts
+++ b/packages/filesystem/src/browser/download/file-download-service.ts
@@ -25,7 +25,6 @@ import { FileDownloadData } from '../../common/download/file-download-data';
 import { Deferred } from '@theia/core/lib/common/promise-util';
 import { MessageService } from '@theia/core/lib/common/message-service';
 import { addClipboardListener } from '@theia/core/lib/browser/widgets';
-import { DisposableCollection } from '@theia/core/lib/common';
 
 @injectable()
 export class FileDownloadService {
@@ -47,8 +46,6 @@ export class FileDownloadService {
     @inject(MessageService)
     protected readonly messageService: MessageService;
 
-    protected readonly toDispose = new DisposableCollection();
-
     protected uploadForm: {
         target: HTMLInputElement
         file: HTMLInputElement
@@ -203,7 +200,7 @@ export class FileDownloadService {
         }
     }
 
-    protected forceDownload(id: string, title: string): void {
+    protected async forceDownload(id: string, title: string): Promise<void> {
         let url: string | undefined;
         try {
             if (this.anchor === undefined) {