diff --git a/wp-includes/comment-functions.php b/wp-includes/comment-functions.php
index ded195f186..227697a047 100644
--- a/wp-includes/comment-functions.php
+++ b/wp-includes/comment-functions.php
@@ -447,7 +447,7 @@ function pingback($content, $post_ID) {
 				$post_links[] = $link_test;
 			elseif(($test['path'] != '/') && ($test['path'] != ''))
 				$post_links[] = $link_test;
-			do_action('pre_ping',  &$post_links, &$pung);
+			do_action('pre_ping',  array(&$post_links, &$pung));
 		endif;
 	endforeach;