diff --git a/backend/src/file/file.controller.ts b/backend/src/file/file.controller.ts
index 3bb6d61e..ce50dc88 100644
--- a/backend/src/file/file.controller.ts
+++ b/backend/src/file/file.controller.ts
@@ -79,7 +79,7 @@ export class FileController {
     const zip = this.fileService.getZip(shareId);
     res.set({
       "Content-Type": "application/zip",
-      "Content-Disposition": `attachment ; filename="pingvin-share-${shareId}"`,
+      "Content-Disposition": `attachment ; filename="pingvin-share-${shareId}.zip"`,
     });
 
     return new StreamableFile(zip);