diff --git a/includes/class-static_press.php b/includes/class-static_press.php
index 4f375ff..13314e6 100644
--- a/includes/class-static_press.php
+++ b/includes/class-static_press.php
@@ -727,6 +727,9 @@ private function single_url($url_type = 'single') {
 			$permalink = get_permalink($post->ID);
 			if (is_wp_error($permalink))
 				continue;
+			if (preg_match('/.*\.html\/.*/', $permalink, $m)) {
+				continue;
+			}
 			$count = 1;
 			if ( $splite = preg_split("#<!--nextpage-->#", $post->post_content) )
 				$count = count($splite);