lib/PublicInbox/Daemon.pm | 4 ++++
 t/httpd-unix.t            | 8 ++++++++

diff --git a/lib/PublicInbox/Daemon.pm b/lib/PublicInbox/Daemon.pm
index 51562624847852f56abeb4cab5c15f3ec0a88d6e..a6707e832621812c055ec380a07b527b3e7be0d2 100644
--- a/lib/PublicInbox/Daemon.pm
+++ b/lib/PublicInbox/Daemon.pm
@@ -185,6 +185,10 @@ sub sockname ($) {
 	my ($s) = @_;
 	my $addr = getsockname($s) or return;
 	my ($host, $port) = host_with_port($addr);
+	if ($port == 0 && $host eq '127.0.0.1') {
+		my ($path) = Socket::sockaddr_un($addr);
+		return $path;
+	}
 	"$host:$port";
 }
 
diff --git a/t/httpd-unix.t b/t/httpd-unix.t
index b3368491b14bb892efa813e790999fff92155486..13df676b5fcf361a60493acfbf6aa9b440981ea2 100644
--- a/t/httpd-unix.t
+++ b/t/httpd-unix.t
@@ -35,6 +35,14 @@ 	}
 	ok(defined $pid, 'forked httpd process successfully');
 };
 
+{
+	require PublicInbox::Daemon;
+	my $l = "$tmpdir/named.sock";
+	my $s = IO::Socket::UNIX->new(Listen => 5, Local => $l,
+					Type => SOCK_STREAM);
+	is(PublicInbox::Daemon::sockname($s), $l, 'sockname works for UNIX');
+}
+
 ok(!-S $unix, 'UNIX socket does not exist, yet');
 $spawn_httpd->("-l$unix");
 for (1..1000) {