diff --git a/src/snapchat.php b/src/snapchat.php
index 4597bec..4dd9b13 100644
--- a/src/snapchat.php
+++ b/src/snapchat.php
@@ -873,6 +873,7 @@ public function sendMessage($tos, $text){
 
 	public function getConversations()
 	{
+		$offset = null;
 		$updates = $this->getUpdates();
 		$last = end($updates['data']->conversations_response);
 		if (isset($last->iter_token))