diff --git a/xCAT-server/lib/xcat/plugins/blade.pm b/xCAT-server/lib/xcat/plugins/blade.pm
index fd0028354..9ef48ed11 100644
--- a/xCAT-server/lib/xcat/plugins/blade.pm
+++ b/xCAT-server/lib/xcat/plugins/blade.pm
@@ -1818,6 +1818,7 @@ sub getmacs {
      foreach my $midx ( @midxary) {
        (my $macd,my $mac) = split (/:/,$macs[$midx],2);
        $mac =~ s/\s+//g;
+       $mac =~ s/(.*)/\L$1/g;
        if ($macd !~ /mac address \d/i) {
            return 1,"Unable to retrieve MAC address for interface $midx from Management Module";
        }