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

diff --git a/lib/PublicInbox/Inbox.pm b/lib/PublicInbox/Inbox.pm
index ec8469e3e1cfd2a95a9fe4ef3e801181f314b81f..1b9b56ff1a7220e12350b726520bfcf91efa59e2 100644
--- a/lib/PublicInbox/Inbox.pm
+++ b/lib/PublicInbox/Inbox.pm
@@ -414,8 +414,8 @@ sub on_unlock {
 	my ($self) = @_;
 	check_inodes($self);
 	my $subs = $self->{unlock_subs} or return;
-	for (values %$subs) {
-		eval { $_->on_inbox_unlock($self) };
+	for my $obj (values %$subs) {
+		eval { $obj->on_inbox_unlock($self) };
 		warn "E: $@ ($self->{inboxdir})\n" if $@;
 	}
 }