Remove "ipv6only" option from Puppet nginx module

My nginx server (which serves multiple vhosts) fails to start: Nov 08 23:54:43 foo systemd[1] : Starting nginx - high performance web server... Nov 08 23:54:43 foo nginx: nginx: [emerg] duplicate listen options for [::]:8081 in /etc/nginx/sites-enabled/000-mysite.vhost:3 Nov 08 23:54:43 foo nginx: nginx: configuration file /etc/nginx/nginx.conf test failed Nov 08 23:54:43 foo systemd[1] : nginx.service: control process exited, code=exited status=1 Nov 08 23:54:43 foo systemd[1] : Failed to start nginx - high performance web server. Nov 08 23:54:43 foo systemd[1] : Unit nginx.service entered failed state. Nov 08 23:54:43 foo systemd[1] : nginx.service failed. I've pinpointed the problem to two listen directives bound to the same TCP port for both IPv4 and IPv6, where the option ipv6only is used: [root@foo ~]# head /etc/nginx/sites-enabled/mysite.vhost server { listen 8081; listen [::]:8081 ipv6only=on; ssl off; ... So this configuration works correctly: [root@foo ~]# head /etc/nginx/sites-enabled/mysite.vhost server { listen 8081; listen [::]:8081; ssl off; ... [Related question: https://serverfault.com/questions/638367/do-you-need-separate-ipv4-and-ipv6-listen-directives-in-nginx] Now, this configuration is provisioned by Puppet via the puppet-nginx module . Is there a way to (via Puppet) not specify the ipv6only option, or solve the problem in another manner?