diff --git a/web/src/lib/utils/asset-utils.ts b/web/src/lib/utils/asset-utils.ts
index 92c87e4661..94f451c3c1 100644
--- a/web/src/lib/utils/asset-utils.ts
+++ b/web/src/lib/utils/asset-utils.ts
@@ -59,8 +59,8 @@ export const downloadArchive = async (fileName: string, options: DownloadInfoDto
 
   for (let index = 0; index < downloadInfo.archives.length; index++) {
     const archive = downloadInfo.archives[index];
-    const suffix = downloadInfo.archives.length === 1 ? '' : `+${index + 1}`;
-    const archiveName = fileName.replace('.zip', `${suffix}-${DateTime.now().toFormat('yyyy-LL-dd-HH-mm-ss')}.zip`);
+    const suffix = downloadInfo.archives.length > 1 ? `+${index + 1}` : '';
+    const archiveName = fileName.replace('.zip', `${suffix}-${DateTime.now().toFormat('yyyyLLdd_HHmmss')}.zip`);
     const key = getKey();
 
     let downloadKey = `${archiveName} `;