diff --git a/xCAT-probe/lib/perl/probe_utils.pm b/xCAT-probe/lib/perl/probe_utils.pm
index 71e3ae8d6..6fbf59cd5 100644
--- a/xCAT-probe/lib/perl/probe_utils.pm
+++ b/xCAT-probe/lib/perl/probe_utils.pm
@@ -448,7 +448,7 @@ sub is_dns_ready {
     my $hostname = shift;
     my $domain   = shift;
 
-    my $output = `nslookup $mnip $serverip 2>&1`;
+    my $output = `nslookup -type=A $mnip $serverip 2>&1`;
 
     if ($?) {
         return 0;
diff --git a/xCAT-probe/subcmds/xcatmn b/xCAT-probe/subcmds/xcatmn
index 262a2c86e..f2f6ed1da 100755
--- a/xCAT-probe/subcmds/xcatmn
+++ b/xCAT-probe/subcmds/xcatmn
@@ -1006,7 +1006,7 @@ sub check_dns_service {
                 } else {
 
                     # if there is no sn, nslookup mnip
-                    my $nslkp = `nslookup $serverip $serverip 2>&1`;
+                    my $nslkp = `nslookup -type=A $serverip $serverip 2>&1`;
                     chomp($nslkp);
                     my $tmp = grep { $_ =~ "Server:[\t\s]*$serverip" } split(/\n/, $nslkp);
                     if (!$tmp) {