diff --git a/xCAT-server/lib/xcat/plugins/bmcdiscover.pm b/xCAT-server/lib/xcat/plugins/bmcdiscover.pm
index 4264f519d..f25f29851 100644
--- a/xCAT-server/lib/xcat/plugins/bmcdiscover.pm
+++ b/xCAT-server/lib/xcat/plugins/bmcdiscover.pm
@@ -670,7 +670,8 @@ sub scan_process {
 
                 my $nmap_cmd = "nmap ${$live_ip}[$i] -p $openbmc_port -Pn";
                 my $nmap_output = xCAT::Utils->runcmd($nmap_cmd, -1);
-                if ($nmap_output =~ /$openbmc_port(.+)open/) {
+                if ($nmap_output =~ /$openbmc_port(.+)/) {
+                    # if the openbmc_port exists at any nmap status, assume it's an OpenBMC server
                     bmcdiscovery_openbmc(${$live_ip}[$i], $opz, $opw, $request_command);
                 } else {
                     bmcdiscovery_ipmi(${$live_ip}[$i], $opz, $opw, $request_command);