diff --git a/CHANGES b/CHANGES
index 9769d3d89..eed4b8e4d 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2457,4 +2457,5 @@
 * Check if CNAME record exists and remove it if overwrite is set
 * cifs: use credentials file for better password support
 * installer: rework script to fix DNS resolution issues
+* backup cleaner: do not clean if not mounted
 
diff --git a/src/backupcleaner.js b/src/backupcleaner.js
index 3dce352b2..6bba62ed1 100644
--- a/src/backupcleaner.js
+++ b/src/backupcleaner.js
@@ -1,5 +1,7 @@
 'use strict';
 
+const BoxError = require('./boxerror.js');
+
 exports = module.exports = {
     run,
 
@@ -12,6 +14,7 @@ const apps = require('./apps.js'),
     constants = require('./constants.js'),
     debug = require('debug')('box:backupcleaner'),
     moment = require('moment'),
+    mounts = require('./mounts.js'),
     path = require('path'),
     paths = require('./paths.js'),
     safe = require('safetydance'),
@@ -282,6 +285,13 @@ async function run(progressCallback) {
 
     const backupConfig = await settings.getBackupConfig();
 
+    if (mounts.isManagedProvider(backupConfig.provider) || backupConfig.provider === 'mountpoint') {
+        const hostPath = mounts.isManagedProvider(backupConfig.provider) ? paths.MANAGED_BACKUP_MOUNT_DIR : backupConfig.mountPoint;
+        const status = await mounts.getStatus(backupConfig.provider, hostPath); // { state, message }
+        debug(`clean: mount point status is ${JSON.stringify(status)}`);
+        if (status.state !== 'active') throw new BoxError(BoxError.MOUNT_ERROR, `Backup endpoint is not mounted: ${status.message}`);
+    }
+
     if (backupConfig.retentionPolicy.keepWithinSecs < 0) {
         debug('cleanup: keeping all backups');
         return {};
diff --git a/src/settings.js b/src/settings.js
index 9bf4d6ac9..6974f3f2e 100644
--- a/src/settings.js
+++ b/src/settings.js
@@ -405,10 +405,9 @@ async function getBackupConfig() {
 
     const backupConfig = JSON.parse(value); // provider, token, password, region, prefix, bucket
 
-    if (mounts.isManagedProvider(backupConfig.provider)) {
-        backupConfig.mountStatus = await mounts.getStatus(backupConfig.provider, paths.MANAGED_BACKUP_MOUNT_DIR); // { state, message }
-    } else if (backupConfig.provider === 'mountpoint') {
-        backupConfig.mountStatus = await mounts.getStatus(backupConfig.provider, backupConfig.mountPoint); // { state, message }
+    if (mounts.isManagedProvider(backupConfig.provider) || backupConfig.provider === 'mountpoint') {
+        const hostPath = mounts.isManagedProvider(backupConfig.provider) ? paths.MANAGED_BACKUP_MOUNT_DIR : backupConfig.mountPoint;
+        backupConfig.mountStatus = await mounts.getStatus(backupConfig.provider, hostPath); // { state, message }
     }
 
     return backupConfig;