I am recieving a 500 "File name cannot be null or empty" error on the CreateAttachment API

[N_Joubert]

I am trying to upload some attachments to a confluence wiki page through the create attachment API.

I am using this curl as a test but keep getting an error after following all examples I can find on it:

curl -D- -u [username]:[token] -X POST -H "X-Atlassian-Token: nocheck" -F "file=MyFile.txt" -F "comment=This is my File" --header "Accept: application/json" https://[domain].atlassian.net/wiki/rest/api/content/[page_id]/child/attachment

The exact error I get back is: {"statusCode":500,"message":"java.lang.IllegalArgumentException: File name cannot be null or empty."}

Any other fields I might be missing in the request? I don't see anything else in the documentation on this.