Emdebian.conf Repository without Source

Hello Embebian List,

I am trying to create a Emedbian.conf file to run multistrap on.  I have
development repository on my machine that happens to not have Sources
listed on it. When I run multistrap it is failing when trying to fetch
Souces. How would I disable fetching of sources in the conf file?

[Devmachine]
packages=somepackage
source=http://testmachine/repo/
components=main
suite=stable

Im receiving this error:

W: Failed to fetch
http://testmachine/repo/dists/stable/main/source/Sources 404  Not
Found

E: Some index files failed to download. They have been ignored, or old ones
used instead.
apt update failed. Exit value: 100

Thanks for any help.