diff --git a/xCAT-server/lib/xcat/plugins/anaconda.pm b/xCAT-server/lib/xcat/plugins/anaconda.pm
index c45a3909f..790d290f8 100644
--- a/xCAT-server/lib/xcat/plugins/anaconda.pm
+++ b/xCAT-server/lib/xcat/plugins/anaconda.pm
@@ -35,6 +35,7 @@ my %distnames = (
                  "1213888991.267240" => "centos5.2",
                  "1214240246.285059" => "centos5.2",
                  "1237641529.260981" => "centos5.3",
+                 "1272326751.405938" => "centos5.5",
                  "1195488871.805863" => "centos4.6",
                  "1195487524.127458" => "centos4.6",
                  "1170973598.629055" => "rhelc5",