htaccess permanent re-direct from former static pages giving problem !

Hi,

I’ve redesigned a (formerly static) website and put WordPress behind it. Now I want to redirect the former static category pages to the new wordpress categories but it’s not exactly doing what I want and I can’t seem to fix it myself:

here’s an example:

the old url was:
https://www.domain.com/mag/category.php

the new url is:
https://www.domain.com/news/category/

my htaccess redirect rule is:
Redirect permanent /mag/category.php https://www.domain.com/news/category/

and this is where it redirects to:
https://www.domain.com/news/category/?category_name=mag&name=category.php&page=

So the redirection url is fine EXCEPT that it’s still adding variables at the end.

Can anyone tell me how I can fix this redirect so t redirects to https://www.domain.com/news/category/ without the variables.

Thanks in advance !