diff --git a/perl-xCAT/xCAT/data/discinfo.pm b/perl-xCAT/xCAT/data/discinfo.pm
index fd9b40f0b..b406c834d 100755
--- a/perl-xCAT/xCAT/data/discinfo.pm
+++ b/perl-xCAT/xCAT/data/discinfo.pm
@@ -136,7 +136,7 @@ our %distnames = (
     "1390839789.062069" => "SL6.5",         #x86_64 DVD ISO Install
 
     "1529960248.065311" => "ol6.10",        # x86_64, Oracle Linux 6.10
-    "1565395001.564692" => "ol7.7",         # x86_64, Oracle Linux 7.8
+    "1565395001.564692" => "ol7.7",         # x86_64, Oracle Linux 7.7
     "1586293815.797636" => "ol7.8",         # x86_64, Oracle Linux 7.8
     "1601956087.745957" => "ol7.9",         # x86_64, Oracle Linux 7.9
     "1563868563.575621" => "ol8.0",         # x86_64, Oracle Linux 8.0