lib/PublicInbox/Daemon.pm | 1 +

diff --git a/lib/PublicInbox/Daemon.pm b/lib/PublicInbox/Daemon.pm
index b64ec87412dc07703d2a171c34ce59fb3511a2e3..b76b9ffbf91ac944518aa72d43ed43bcde618174 100644
--- a/lib/PublicInbox/Daemon.pm
+++ b/lib/PublicInbox/Daemon.pm
@@ -448,6 +448,7 @@ 	reopen_logs();
 	$SIG{QUIT} = $SIG{INT} = $SIG{TERM} = *worker_quit;
 	$SIG{USR1} = *reopen_logs;
 	$SIG{HUP} = $refresh;
+	$SIG{$_} = 'DEFAULT' for qw(CHLD USR2 TTIN TTOU WINCH);
 	# this calls epoll_create:
 	@listeners = map {
 		PublicInbox::Listener->new($_, $post_accept)