diff --git a/wp-admin/includes/media.php b/wp-admin/includes/media.php
index 80c3bd24b7..2b4fa70275 100644
--- a/wp-admin/includes/media.php
+++ b/wp-admin/includes/media.php
@@ -586,7 +586,7 @@ function get_media_items( $post_id, $errors ) {
 		if ( $post && $post->post_type == 'attachment' )
 			$attachments = array($post->ID => $post);
 		else
-			$attachments = get_children("post_parent=$post_id&post_type=attachment&orderby=menu_order ASC, ID&order=DESC");
+			$attachments = get_children( array( 'post_parent' => $post_id, 'post_type' => 'attachment', 'orderby' => 'menu_order ASC, ID', 'order' => 'DESC') );
 	} else {
 		if ( is_array($GLOBALS['wp_the_query']->posts) )
 			foreach ( $GLOBALS['wp_the_query']->posts as $attachment )
diff --git a/wp-includes/post.php b/wp-includes/post.php
index 63c9ff48a5..97e9c07803 100644
--- a/wp-includes/post.php
+++ b/wp-includes/post.php
@@ -70,14 +70,14 @@ function update_attached_file( $attachment_id, $file ) {
 function &get_children($args = '', $output = OBJECT) {
 	if ( empty( $args ) ) {
 		if ( isset( $GLOBALS['post'] ) ) {
-			$args = 'post_parent=' . (int) $GLOBALS['post']->post_parent;
+			$args = array('post_parent' => (int) $GLOBALS['post']->post_parent );
 		} else {
 			return false;
 		}
 	} elseif ( is_object( $args ) ) {
-		$args = 'post_parent=' . (int) $args->post_parent;
+		$args = array('post_parent' => (int) $args->post_parent );
 	} elseif ( is_numeric( $args ) ) {
-		$args = 'post_parent=' . (int) $args;
+		$args = array('post_parent' => (int) $args);
 	}
 
 	$defaults = array(