diff --git a/src/frontend/plugins/onlyoffice-api-js/onlyoffice-viewer.component.ts b/src/frontend/plugins/onlyoffice-api-js/onlyoffice-viewer.component.ts
index f5b25eae59116ab1318f9c06366e7f5898be8f87..0807d0812aaf90346f482b90e179a92717a8da21 100644
--- a/src/frontend/plugins/onlyoffice-api-js/onlyoffice-viewer.component.ts
+++ b/src/frontend/plugins/onlyoffice-api-js/onlyoffice-viewer.component.ts
@@ -84,7 +84,7 @@ export class EcplOnlyofficeViewerComponent implements OnInit, AfterViewInit {
 
     getDocument() {
         this.isSaving = true;
-        this.docEditor.downloadAs();
+        this.docEditor.downloadAs(this.file.format);
     }
 
     getEncodedDocument(data: any) {