Unexpected regex behaviour

I have this as a Regex redirect:

/journalism-fine-mass-media-business-models-ailing.*

redirecting to:

https://billbennett.co.nz/new-zealand-technology-journalism-twilight-years/

The idea is that it would pick up a URL like:

https://billbennett.co.nz/journalism-fine-mass-media-business-models-ailing/featured-image-19590/

Which it does… but it stores the .* part of the URL and adds that to the new one, so my redirect goes to:

https://billbennett.co.nz/new-zealand-technology-journalism-twilight-years/featured-image-19590/

How can I rewrite this so that it doesn’t store and forward the .*

I thought I would need to use (.*) in the source and $1 in the target for Regex to do the storing and forwarding.