lib/PublicInbox/Qspawn.pm | 4 ++--
 lib/PublicInbox/Spawn.pm  | 4 ++--

diff --git a/lib/PublicInbox/Qspawn.pm b/lib/PublicInbox/Qspawn.pm
index c09e8d2c227b0b6bc01ddc1a13598d72c73d6c72..d395a10b3b156b1fac05facbad8a4eca04ef44c2 100644
--- a/lib/PublicInbox/Qspawn.pm
+++ b/lib/PublicInbox/Qspawn.pm
@@ -48,7 +48,7 @@ 	my $err;
 	my ($cmd, $cmd_env, $opt) = @{delete $self->{args}};
 	my %o = %{$opt || {}};
 	$self->{limiter} = $limiter;
-	foreach my $k (PublicInbox::Spawn::RLIMITS()) {
+	foreach my $k (@PublicInbox::Spawn::RLIMITS) {
 		if (defined(my $rlimit = $limiter->{$k})) {
 			$o{$k} = $rlimit;
 		}
@@ -358,7 +358,7 @@ }
 
 sub setup_rlimit {
 	my ($self, $name, $config) = @_;
-	foreach my $rlim (PublicInbox::Spawn::RLIMITS()) {
+	foreach my $rlim (@PublicInbox::Spawn::RLIMITS) {
 		my $k = lc($rlim);
 		$k =~ tr/_//d;
 		$k = "publicinboxlimiter.$name.$k";
diff --git a/lib/PublicInbox/Spawn.pm b/lib/PublicInbox/Spawn.pm
index f90d8f6d3dd2d9d7f1ea6a73c8f41a70eaf718bf..ba6e73675fe4a50483b6f1606e917ea702aa4511 100644
--- a/lib/PublicInbox/Spawn.pm
+++ b/lib/PublicInbox/Spawn.pm
@@ -18,7 +18,7 @@ use base qw(Exporter);
 use Symbol qw(gensym);
 use PublicInbox::ProcessPipe;
 our @EXPORT_OK = qw/which spawn popen_rd/;
-sub RLIMITS () { qw(RLIMIT_CPU RLIMIT_CORE RLIMIT_DATA) }
+our @RLIMITS = qw(RLIMIT_CPU RLIMIT_CORE RLIMIT_DATA);
 
 my $vfork_spawn = <<'VFORK_SPAWN';
 #include <sys/types.h>
@@ -209,7 +209,7 @@ 		$redir->[$child_fd] = $parent_fd // $child_fd;
 	}
 	my $rlim = [];
 
-	foreach my $l (RLIMITS()) {
+	foreach my $l (@RLIMITS) {
 		defined(my $v = $opts->{$l}) or next;
 		my $r = eval "require BSD::Resource; BSD::Resource::$l();";
 		unless (defined $r) {