diff --git a/scripts/buildtable.pl b/scripts/buildtable.pl
index 75ace261..1edd8c0d 100755
--- a/scripts/buildtable.pl
+++ b/scripts/buildtable.pl
@@ -54,6 +54,7 @@ my %ValidStatus = (
 	Final => "background-color: #cfffcf",
 	Active => "background-color: #cfffcf",
 	Replaced => "background-color: #ffcfcf",
+	Obsolete => "background-color: #ffcfcf",
 );
 my %ValidType = (
 	'Standards Track' => 'Standard',