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-rw-r--r--lib/PublicInbox/NNTPD.pm6
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/PublicInbox/NNTPD.pm b/lib/PublicInbox/NNTPD.pm
index b8ec84ed..ed5cf7cc 100644
--- a/lib/PublicInbox/NNTPD.pm
+++ b/lib/PublicInbox/NNTPD.pm
@@ -30,9 +30,9 @@ sub new {
         }, $class;
 }
 
-sub refresh_groups () {
-        my ($self) = @_;
-        my $pi_config = PublicInbox::Config->new;
+sub refresh_groups {
+        my ($self, $pi_config) = @_;
+        $pi_config //= PublicInbox::Config->new;
         my $new = {};
         my @list;
         $pi_config->each_inbox(sub {