diff --git a/wp-includes/link-template.php b/wp-includes/link-template.php
index d207cbaa21..52a06221cc 100644
--- a/wp-includes/link-template.php
+++ b/wp-includes/link-template.php
@@ -108,7 +108,7 @@ function get_permalink($id = 0, $leavename = false) {
 	elseif ( $post->post_type == 'attachment' )
 		return get_attachment_link($post->ID);
 	elseif ( in_array($post->post_type, get_post_types( array('_builtin' => false) ) ) )
-		return get_post_permalink($post, $leavename);
+		return get_post_permalink($post, $leavename, $sample);
 
 	$permalink = get_option('permalink_structure');