lib/PublicInbox/Mbox.pm | 2 +-

diff --git a/lib/PublicInbox/Mbox.pm b/lib/PublicInbox/Mbox.pm
index 8bb8dc83ba3d99acc438cae0f62d69203405f529..6aa05170392cc42d841db0d026b2cc2ec189cf1d 100644
--- a/lib/PublicInbox/Mbox.pm
+++ b/lib/PublicInbox/Mbox.pm
@@ -32,7 +32,7 @@ 	my $header_obj = $simple->header_obj;
 
 	# drop potentially confusing headers, ssoma already should've dropped
 	# Lines and Content-Length
-	foreach my $d (qw(Lines Content-Length Status)) {
+	foreach my $d (qw(Lines Bytes Content-Length Status)) {
 		$header_obj->header_set($d);
 	}