Enable debug logging in vhost Apache 2.4.6

I have an apache server (I didn't do the setup). The httpd.conf is default and I see nothing about logging.

in conf.d/vhost_xxx I see some config for my vhost. I add the LogLevel debug:

<VirtualHost _default_:80>

        ServerName xx
        ServerAdmin xx
        DocumentRoot "/srv/www/html/"


        LogLevel debug
        ErrorLog logs/xx
        CustomLog logs/xx


</VirtualHost>

I reload (also restarted) my apache:

service httpd restart

But my logs aren't in debug mode. It's just the basic logging. What am I missing here?