Index: wp-includes/class-wp-xmlrpc-server.php
===================================================================
--- wp-includes/class-wp-xmlrpc-server.php	(revision 26748)
+++ wp-includes/class-wp-xmlrpc-server.php	(working copy)
@@ -4845,7 +4845,8 @@
 				'custom_fields' => $this->get_custom_fields($entry['ID']),
 				'wp_post_format' => $post_format,
 				'date_modified' => $post_modified,
-				'date_modified_gmt' => $post_modified_gmt
+				'date_modified_gmt' => $post_modified_gmt,
+				'sticky' => ( $post['post_type'] === 'post' && is_sticky( $post['ID'] ) ),
 			);
 
 			$entry_index = count( $struct ) - 1;