# Minio S3 Object Name Errors

**URL:** https://forum.duplicati.com/t/minio-s3-object-name-errors/4987
**Category:** Support
**Created:** [October 18, 2018, 4:34am UTC](https://forum.duplicati.com/t/minio-s3-object-name-errors/4987 "2018-10-18T04:34:19Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![DarkKnight](https://forum.duplicati.com/user_avatar/forum.duplicati.com/darkknight/32/2184_2.png) [@DarkKnight](https://forum.duplicati.com/u/DarkKnight)
#### Post date: [October 18, 2018, 4:38am UTC](https://forum.duplicati.com/t/minio-s3-object-name-errors/4987/2 "2018-10-18T04:38:12Z")

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Literally right after posting this I found:

> [@400 - bad\_request: File names must not contain '\\'](https://forum.duplicati.com/t/400-bad-request-file-names-must-not-contain/3523/5):
>
> Can you (and @dunnry) let us know what version of Duplicati you’re running and on what OS (Linux, MacOS, Windows)? Oh, and are you able to use the job menu to Export your job “As commandline” and paste it here (with personal stuff like passwords & email address removed)?

The problem is the pre-populated destination contains /source/

Remove the destination and it works as intended. Leaving this up for others to find.

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_[View the full topic](https://forum.duplicati.com/t/minio-s3-object-name-errors/4987)._