diff --git a/e107_plugins/pm/pm_class.php b/e107_plugins/pm/pm_class.php
index 0feb3340b..7a1a14603 100755
--- a/e107_plugins/pm/pm_class.php
+++ b/e107_plugins/pm/pm_class.php
@@ -120,6 +120,7 @@ class private_message
 		$ret = '';
 		$addOutbox = TRUE;
 		$timestamp = time();
+		$a_list = array();
 
 		$maxSendNow = varset($this->pmPrefs['pm_max_send'],100);	// Maximum number of PMs to send without queueing them
 		if (isset($vars['pm_from']))