--- sql2xls.cgi	2008/11/03 18:44:42	6
+++ sql2xls.cgi	2008/11/03 18:50:02	7
@@ -86,7 +86,7 @@
 	print STDERR "working on $sql_file\n" if ($debug);
 
 	open(SQL,$sql_file) || die "can't open sql file '$sql_file': $!";
-	my $comment;
+	my $comment = '';
 	my $sql = "";
 	while(<SQL>) {
 		chomp;