diff --git a/sailthru/Sailthru_Client.php b/sailthru/Sailthru_Client.php
index <HASH>..<HASH> 100644
--- a/sailthru/Sailthru_Client.php
+++ b/sailthru/Sailthru_Client.php
@@ -579,8 +579,9 @@ class Sailthru_Client {
      * @param Mixed $tags Null for empty values, or String or arrays
      * @link http://docs.sailthru.com/api/content
      */
-    public function pushContent($title, $url, $date = null, $tags = null, $vars = array()) {
+    public function pushContent($title, $url, $date = null, $tags = null, $vars = array(),$spider = 1) {
         $data = array();
+        $data['spider'] = $spider;
         $data['title'] = $title;
         $data['url'] = $url;
         if (!is_null($tags)) {
Update Sailthru_Client.php