diff --git a/includes/discovery/os/symbol.inc.php b/includes/discovery/os/symbol.inc.php
index 0d1ce2e044..e90c95a67a 100644
--- a/includes/discovery/os/symbol.inc.php
+++ b/includes/discovery/os/symbol.inc.php
@@ -3,7 +3,6 @@
 if (!$os)
 {
   if (strstr($sysObjectId, ".1.3.6.1.4.1.388")) { $os = "symbol"; }
-  echo "symbol";    
 }
 
 ?>
diff --git a/includes/functions.php b/includes/functions.php
index 6f0ed609ca..856dabf615 100755
--- a/includes/functions.php
+++ b/includes/functions.php
@@ -184,10 +184,10 @@ function addHost($host, $community, $snmpver, $port = '161', $transport = 'udp')
   if (dbFetchCell("SELECT COUNT(*) FROM `devices` WHERE `hostname` = ?", array($host)) == '0')
   {
     /// Test DNS lookup
-    if (isDomainResolves($argv[1]))
+    if (gethostbyname($host) != $host)
     {
       /// Test reachability
-      if (isPingable($argv[1]))
+      if (isPingable($host))
       {
         $added = 0;
         /// try each community from config