diff --git a/system/libraries/Xmlrpc.php b/system/libraries/Xmlrpc.php
index c766a89..6fa7918 100644
--- a/system/libraries/Xmlrpc.php
+++ b/system/libraries/Xmlrpc.php
@@ -1886,7 +1886,7 @@
 	public function serializeval($o)
 	{
 		$array = $o->me;
-		list($value, $type) = array(reset($ar), key($array));
+		list($value, $type) = array(reset($array), key($array));
 		return "<value>\n".$this->serializedata($type, $value)."</value>\n";
 	}