diff --git a/inc/functions.php b/inc/functions.php
index be20d034..686a7e22 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -2269,7 +2269,7 @@ function rDNS($ip_addr) {
 
 	$isip = filter_var($host, FILTER_VALIDATE_IP);
 
-	if ($config['fcrdns'] && !$isip && gethostbyname($host) != $ip_addr) {
+	if ($config['fcrdns'] && !$isip && DNS($host) != $ip_addr) {
 		$host = $ip_addr;
 	}