lib/PublicInbox/NNTP.pm | 5 +++++
 public-inbox-nntpd      | 2 +-

diff --git a/lib/PublicInbox/NNTP.pm b/lib/PublicInbox/NNTP.pm
index 0d0de976f562454c0c3443eed3c95cbbf6a9f6b7..52d6a64c2db45119953cc06d55d41ec59bcd0404 100644
--- a/lib/PublicInbox/NNTP.pm
+++ b/lib/PublicInbox/NNTP.pm
@@ -919,4 +919,9 @@ 	}
 	$rv;
 }
 
+sub busy () {
+	my ($self) = @_;
+	($self->{rbuf} ne '' || $self->{long_res} || $self->{write_buf_size});
+}
+
 1;
diff --git a/public-inbox-nntpd b/public-inbox-nntpd
index 4c1560803e221c279be82a4de40637a6ee06393c..70bab46f304bc121ef1bf62b570665f79c0a669d 100644
--- a/public-inbox-nntpd
+++ b/public-inbox-nntpd
@@ -205,7 +205,7 @@ 		my $n = 0;
 
 		foreach my $s (values %$dmap) {
 			next unless ref($s) eq 'PublicInbox::NNTP';
-			if ($s->{write_buf_size} || $s->{rbuf}) {
+			if ($s->busy) {
 				++$n;
 			} else {
 				$s->close;