lib/PublicInbox/LeiToMail.pm | 1 +

diff --git a/lib/PublicInbox/LeiToMail.pm b/lib/PublicInbox/LeiToMail.pm
index 76e103c7c2351638902bac42cd6290488e9e761d..ca4e92de48b77c02a0dfd98c2b1483e8e5a2290b 100644
--- a/lib/PublicInbox/LeiToMail.pm
+++ b/lib/PublicInbox/LeiToMail.pm
@@ -132,6 +132,7 @@ }
 
 sub git_to_mail { # git->cat_async callback
 	my ($bref, $oid, $type, $size, $arg) = @_;
+	$type // return; # called by git->async_abort
 	my ($write_cb, $smsg) = @$arg;
 	if ($type eq 'missing' && $smsg->{-lms_ro}) {
 		if ($bref = $smsg->{-lms_ro}->local_blob($oid, 1)) {