lib/PublicInbox/Config.pm | 3 +++
 t/config.t                | 3 ++-

diff --git a/lib/PublicInbox/Config.pm b/lib/PublicInbox/Config.pm
index b6885a3108dfec79b72d5d28e25f8e8644605a44..300dd88bf2bd5bd402339379ac47552ada3ec219 100644
--- a/lib/PublicInbox/Config.pm
+++ b/lib/PublicInbox/Config.pm
@@ -35,6 +35,9 @@
 	my %rv = map {
 		$_ => $self->{"$pfx.$_"}
 	} (qw(mainrepo description address));
+	my $listname = $pfx;
+	$listname =~ s/\Apublicinbox\.//;
+	$rv{listname} = $listname;
 	\%rv;
 }
 
diff --git a/t/config.t b/t/config.t
index 145589ead5d227e50e21a84589d7b1ee0b770a2a..44e051f2f939caab3f3b040f369ffec70055e1a5 100644
--- a/t/config.t
+++ b/t/config.t
@@ -28,7 +28,8 @@ 	my $cfg = PublicInbox::Config->new($f);
 	is_deeply($cfg->lookup('bugs@public-inbox.org'), {
 		'mainrepo' => '/home/pi/bugs-main.git',
 		'address' => 'bugs@public-inbox.org',
-		'description' => 'development discussion'
+		'description' => 'development discussion',
+		'listname' => 'bugs',
 	}, "lookup matches expected output");
 
 	is($cfg->lookup('blah@example.com'), undef,