diff --git a/scripts/debugdef.pl b/scripts/debugdef.pl
index 6268867d..e7fd19e0 100755
--- a/scripts/debugdef.pl
+++ b/scripts/debugdef.pl
@@ -1,4 +1,7 @@
 #!/usr/bin/perl
+# debugdef.pl: avoid variadic debugging macros through automatic definitions
+
+# written by Thomas Orgis <thomas@orgis.org>, placed in the public domain
 
 my $num = shift(@ARGV);