lib/PublicInbox/Daemon.pm | 4 ++--

diff --git a/lib/PublicInbox/Daemon.pm b/lib/PublicInbox/Daemon.pm
index 67b26d2e8addee54a360073ecd07d2062790a320..862347715e277f7a5cdafe01fe2ecf25d8d0b9b9 100644
--- a/lib/PublicInbox/Daemon.pm
+++ b/lib/PublicInbox/Daemon.pm
@@ -261,10 +261,10 @@ 	# at all
 	for my $sockname (@inherited_names) {
 		$sockname =~ /:([0-9]+)\z/ or next;
 		if (my $scheme = $KNOWN_TLS{$1}) {
-			$xnetd->{$sockname} = load_mod($scheme);
+			$xnetd->{$sockname} //= load_mod($scheme);
 			$tls_opt{"$scheme://$sockname"} ||= accept_tls_opt('');
 		} elsif (($scheme = $KNOWN_STARTTLS{$1})) {
-			$xnetd->{$sockname} = load_mod($scheme);
+			$xnetd->{$sockname} //= load_mod($scheme);
 			$tls_opt{"$scheme://$sockname"} ||= accept_tls_opt('');
 			$tls_opt{''} ||= accept_tls_opt('');
 		}