The problem mainly arises because permalinks set to Custom Structure /%category%/%postname%/. I understand WordPress assumes "page" is a post from the category. That is totally normal behaviour. If you want to remove category base you will need to write some custom rewrite rules, not simple rules I must say. Configure category base to . (dot), put this code in the functions.php of your theme, or better in a plugin, and flush the rewrite rules (code from this post in Daily Web Kit): add_filter ( 'category_rewrite_rules' , 'vipx_filter_category_rewrite_rules' ); function vipx_filter_category_rewrite_rules ( $rules ) { $categories = get_categories ( array ( 'hide_empty' => false ) ); if ( is_array ( $categories ) && ! empty ( $categories ) ) { $slugs = array (); foreach ( $categories as $category ) { if ( is_object ( $category ) && ! is_wp_error ( $ca...