Blocking the feeds page from SEs

Hello,

I use WP and Google keeps indexing the xml feed page version of each post instead of the original post's page, so how can I block those post-feed xml pages from being indexed?

 

Edit your robots.txt depending on what you exactly you need
Something like

 

That should solve your problem but if you want some more reading, check this out:

http://www.seoresearcher.com/how-to-make-your-wordpress-blog-duplicate-content-safe.htm

I found it last week and I plan to implement some of the ideas on all my blogs.