Search results outputs from all pages

Hello,

I am trying to only output results from the /blog/[...] pages. This is my code:

                        <?php 
                            $query = perch_get('q');  // 'q' query string argument e.g. search.php?q=apples
                            $opts = array(
                                'count'=>8,
                                'from-path'=>'blog/',
                                'excerpt-chars'=>300,
                                'paginate' => true,
                                'page-links' => true,
                                'page-link-style' => 'all',
                                'cache' => false,
                                );
                            perch_content_search($query, $opts);
                        ?>

My problem is that the results from all pages are being shown.

Mike