diff --git a/src/backups.js b/src/backups.js
index 636c78598..883f2b9de 100644
--- a/src/backups.js
+++ b/src/backups.js
@@ -1365,10 +1365,9 @@ function cleanupAppBackups(backupConfig, referencedAppBackupIds, progressCallbac
     });
 }
 
-function cleanupBoxBackups(backupConfig, progressCallback, auditSource, callback) {
+function cleanupBoxBackups(backupConfig, progressCallback, callback) {
     assert.strictEqual(typeof backupConfig, 'object');
     assert.strictEqual(typeof progressCallback, 'function');
-    assert.strictEqual(typeof auditSource, 'object');
     assert.strictEqual(typeof callback, 'function');
 
     let referencedAppBackupIds = [], removedBoxBackupIds = [];
@@ -1462,8 +1461,7 @@ function cleanupSnapshots(backupConfig, callback) {
     });
 }
 
-function cleanup(auditSource, progressCallback, callback) {
-    assert.strictEqual(typeof auditSource, 'object');
+function cleanup(progressCallback, callback) {
     assert.strictEqual(typeof progressCallback, 'function');
     assert.strictEqual(typeof callback, 'function');
 
@@ -1477,7 +1475,7 @@ function cleanup(auditSource, progressCallback, callback) {
 
         progressCallback({ percent: 10, message: 'Cleaning box backups' });
 
-        cleanupBoxBackups(backupConfig, progressCallback, auditSource, function (error, { removedBoxBackupIds, referencedAppBackupIds }) {
+        cleanupBoxBackups(backupConfig, progressCallback, function (error, { removedBoxBackupIds, referencedAppBackupIds }) {
             if (error) return callback(error);
 
             progressCallback({ percent: 40, message: 'Cleaning app backups' });
@@ -1499,7 +1497,7 @@ function cleanup(auditSource, progressCallback, callback) {
 
 function startCleanupTask(auditSource, callback) {
 
-    tasks.add(tasks.TASK_CLEAN_BACKUPS, [ auditSource ], function (error, taskId) {
+    tasks.add(tasks.TASK_CLEAN_BACKUPS, [], function (error, taskId) {
         if (error) return callback(error);
 
         tasks.startTask(taskId, {}, (error, result) => { // result is { removedBoxBackups, removedAppBackups }