diff --git a/perl-xCAT/xCAT/data/discinfo.pm b/perl-xCAT/xCAT/data/discinfo.pm
index 7cca83f28..dea10de88 100644
--- a/perl-xCAT/xCAT/data/discinfo.pm
+++ b/perl-xCAT/xCAT/data/discinfo.pm
@@ -25,6 +25,7 @@ require Exporter;
                  "1214240246.285059" => "centos5.2",
                  "1237641529.260981" => "centos5.3",
                  "1272326751.405938" => "centos5.5",
+                 "1330913492.861127" => "centos5.8",#x86_64
                  "1195488871.805863" => "centos4.6",
                  "1195487524.127458" => "centos4.6",
                  "1301444731.448392" => "centos5.6",