diff --git a/lib/asn.php b/lib/asn.php
index 5bfa492..b4a80ea 100644
--- a/lib/asn.php
+++ b/lib/asn.php
@@ -26,7 +26,7 @@ function check_asn($ip, $asns, $whois_server, $port){
     $response = explode(" | ", $response[1]);
 
     foreach ($asns as $asn){
-        if ($asn == $response[0]){
+        if ($asn == trim($response[0])){
             return true;
         }
     }