diff --git a/phpBB/includes/functions_messenger.php b/phpBB/includes/functions_messenger.php
index 73604d591b..26ec2d7a5f 100644
--- a/phpBB/includes/functions_messenger.php
+++ b/phpBB/includes/functions_messenger.php
@@ -484,7 +484,7 @@ class messenger
 			$use_queue = true;
 		}
 
-		$board_contact = (($config['board_contact_name']) ? '"' . mail_encode($config['board_contact_name']) . '" ' : '') . '<' . $config['board_contact'] . '>';
+		$board_contact = (($config['board_contact_name'] !== '') ? '"' . mail_encode($config['board_contact_name']) . '" ' : '') . '<' . $config['board_contact'] . '>';
 
 		if (empty($this->replyto))
 		{