diff --git a/xCAT-server/sbin/xcatd b/xCAT-server/sbin/xcatd
index 355c6669e..87a8224c9 100755
--- a/xCAT-server/sbin/xcatd
+++ b/xCAT-server/sbin/xcatd
@@ -32,7 +32,7 @@ my $plugin_numchildren=0;
 my %plugin_children;
 my $inet6support;
 $inet6support=eval { require Socket6 };
-if ($^O =~ /^aix/i) {
+if ($^O =~ /^aix/i) {  # disable AIX IPV6 TODO
  $inet6support = 0;
 }
 if ($inet6support) {