diff --git a/xCAT-server/lib/perl/xCAT/SvrUtils.pm b/xCAT-server/lib/perl/xCAT/SvrUtils.pm
index 959783b44..23374b101 100644
--- a/xCAT-server/lib/perl/xCAT/SvrUtils.pm
+++ b/xCAT-server/lib/perl/xCAT/SvrUtils.pm
@@ -1121,12 +1121,7 @@ sub get_mac_by_arp ()
             if ( xCAT::Utils->isAIX() ) {
                 $output = `/usr/sbin/arp -a`;
             } else {
-                if ( -e "/etc/debian_version" ) {
-                    $output = `/usr/sbin/arp -n`;
-                }
-                else {
-                    $output = `/sbin/arp -n`;
-                }
+                $output = `/sbin/arp -n`;
             }
 
             my ($ip, $mac);