diff --git a/CHANGES b/CHANGES
index 30983810d..ff7216f90 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2433,4 +2433,5 @@
 * Fix crash in cloudron-firewall when ports are whitelisted
 * eventlog: add event for certificate cleanup
 * eventlog: log event for mailbox alias update
+* backups: fix incorrect mountpoint check with managed mounts
 
diff --git a/src/storage/filesystem.js b/src/storage/filesystem.js
index c3042553a..b58495d9d 100644
--- a/src/storage/filesystem.js
+++ b/src/storage/filesystem.js
@@ -83,7 +83,7 @@ async function checkPreconditions(apiConfig, dataLayout, callback) {
 
     // Check filesystem is mounted so we don't write into the actual folder on disk
     if (apiConfig.provider === PROVIDER_SSHFS || apiConfig.provider === PROVIDER_CIFS || apiConfig.provider === PROVIDER_NFS || apiConfig.provider === PROVIDER_EXT4) {
-        if (result.mountpoint !== apiConfig.mountPoint) return callback(new BoxError(BoxError.FS_ERROR, `${apiConfig.mountPoint} is not mounted`));
+        if (result.mountpoint !== paths.MANAGED_BACKUP_MOUNT_DIR) return callback(new BoxError(BoxError.FS_ERROR, 'Backup target is not mounted'));
     } else if (apiConfig.provider === PROVIDER_MOUNTPOINT) {
         if (result.mountpoint === '/') return callback(new BoxError(BoxError.FS_ERROR, `${apiConfig.backupFolder} is not mounted`));
     }