nginx conflict between multiple virtual hosts config files

Hi,

I have followed the guide on https://www.digitalocean.com/community/articles/how-to-set-up-nginx-virtual-hosts-server-blocks-on-ubuntu-12-04-lts--3 . For one virtual host, it works correctly. But when I’ve tried to add the 2nd, the new /etc/nginx/sites/available/ config file has not been recognized by nginx (I’m getting the content from the other domain). Somehow, if I remove the config file for the first host I created, the new one starts working. So I suppose there’s a conflict between both.

Both sites-available config files have the same structure:

server { listen 80; ## listen for ipv4; this line is default and implied #listen [::]:80 default_server ipv6only=on; ## listen for ipv6

    root /var/www/mydomain.com/public_html/;
    index index.html index.htm;

    # Make site accessible from http://localhost/
    server_name mydomain.com;

    access_log /var/log/nginx/mydomain.com.access.log;
    error_log /var/log/nginx/mydomain.com.error.log;

}

Any suggestion please?