# Cert errors on Mac Catalina

**URL:** <https://forum.duplicati.com/t/cert-errors-on-mac-catalina/9577>\
**Category:** Uncategorized\
**Created:** [April 7, 2020, 6:05pm UTC](https://forum.duplicati.com/t/cert-errors-on-mac-catalina/9577 "2020-04-07T18:05:44Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![SteveBoat](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/s/96bed5/32.png) [@SteveBoat](https://forum.duplicati.com/u/SteveBoat)\
**Post date:** [April 9, 2020, 3:48pm UTC](https://forum.duplicati.com/t/cert-errors-on-mac-catalina/9577/7 "2020-04-09T15:48:43Z")

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Solved

I found a page for Mono support with the fix. In Mac Terminal enter:

curl -L -o /tmp/cacert.pem [https://curl.haxx.se/ca/cacert.pem](https://curl.haxx.se/ca/cacert.pem)  
cert-sync --user /tmp/cacert.pem

I ran these and then all three backups ran without error or Cert warning.

Thanks for the help.

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