X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=lib%2FPublicInbox%2FMbox.pm;h=c50a118b2b6367200767ea929ba97596bd1713c5;hb=e9b2623034841cdaffb8d6f4831f86f11b04357a;hp=42cedd15f5dead4a73170094327501f12111d983;hpb=74fd81670fcc9eaec15a009995e52f9aeefa1494;p=public-inbox.git

diff --git a/lib/PublicInbox/Mbox.pm b/lib/PublicInbox/Mbox.pm
index 42cedd15..c50a118b 100644
--- a/lib/PublicInbox/Mbox.pm
+++ b/lib/PublicInbox/Mbox.pm
@@ -18,7 +18,7 @@ use Email::MIME::Encode;
 sub subject_fn ($) {
 	my ($hdr) = @_;
 	my $fn = $hdr->header('Subject');
-	return 'no-subject' unless defined($fn);
+	return 'no-subject' if (!defined($fn) || $fn eq '');
 
 	# no need for full Email::MIME, here
 	if ($fn =~ /=\?/) {