diff --git a/migrations/20240501100302-settings-remove-backup-storage-limit.js b/migrations/20240501100302-settings-remove-backup-storage-limit.js
new file mode 100644
index 000000000..20813ea1e
--- /dev/null
+++ b/migrations/20240501100302-settings-remove-backup-storage-limit.js
@@ -0,0 +1,14 @@
+'use strict';
+
+exports.up = async function(db) {
+    const result = await db.runSql('SELECT * FROM settings WHERE name=?', [ 'backup_storage' ]);
+    if (!result.length) return;
+
+    const storageConfig = JSON.parse(result[0].value);
+    delete storageConfig.limits; // this is already saved in backup_limits key
+    await db.runSql('UPDATE settings SET value=? WHERE name=?', [ JSON.stringify(storageConfig), 'backup_storage']);
+};
+
+exports.down = async function(/* db */) {
+};
+
diff --git a/src/backups.js b/src/backups.js
index 09802d1cb..db25a2aa0 100644
--- a/src/backups.js
+++ b/src/backups.js
@@ -238,7 +238,7 @@ async function setState(id, state) {
 }
 
 async function startBackupTask(auditSource) {
-    let error = locker.lock(locker.OP_FULL_BACKUP);
+    const error = locker.lock(locker.OP_FULL_BACKUP);
     if (error) throw new BoxError(BoxError.BAD_STATE, `Cannot backup now: ${error.message}`);
 
     const backupConfig = await getConfig();