Single Posts not showing child page permalink structure

Hi there,

I have my posts page in a parent section of my site –

https://www.mysite.com/company/news/

But when I click through to a single post the permalink structure changes, removing the parent page from the url –

https://www.mysite.com/news/post-title/

when it should be – https://www.mysite.com/company/news/post-title/

My permalink structure is set to /%postname%/

Does anyone know how do correct this?
Thanks