diff --git a/dns/dns-inc-serial b/dns/dns-inc-serial
index 7aac6bd..0570ed5 100755
--- a/dns/dns-inc-serial
+++ b/dns/dns-inc-serial
@@ -66,5 +66,5 @@ for my $f (@ARGV) {
 	}
     }
     close($out) or die "cannot close $f.new: $!";
-    # rename "$f.new", $f || die "cannot rename $f.new to $f: $!";
+    rename "$f.new", $f || die "cannot rename $f.new to $f: $!";
 }