diff --git a/src/backupformat/rsync.js b/src/backupformat/rsync.js
index 34ccdb866..5656ad349 100644
--- a/src/backupformat/rsync.js
+++ b/src/backupformat/rsync.js
@@ -109,7 +109,7 @@ async function saveFsMetadata(dataLayout, metadataFile) {
     };
 
     // we assume small number of files. spawnSync will raise a ENOBUFS error after maxBuffer
-    for (let lp of dataLayout.localPaths()) {
+    for (const lp of dataLayout.localPaths()) {
         const emptyDirs = await shell.exec('saveFsMetadata', `find ${lp} -type d -empty`, { maxBuffer: 1024 * 1024 * 80 });
         if (emptyDirs.length) metadata.emptyDirs = metadata.emptyDirs.concat(emptyDirs.trim().split('\n').map((ed) => dataLayout.toRemotePath(ed)));