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

diff --git a/lib/PublicInbox/Inbox.pm b/lib/PublicInbox/Inbox.pm
index b0894a7d6414d038d820afa4533a2c2f69321ddd..e9efd29d40a4b46f993bef2075653f632cb43544 100644
--- a/lib/PublicInbox/Inbox.pm
+++ b/lib/PublicInbox/Inbox.pm
@@ -422,8 +422,8 @@ 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 $@;
 	}
 }