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-rw-r--r--lib/PublicInbox/Config.pm2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/PublicInbox/Config.pm b/lib/PublicInbox/Config.pm
index e0329ebf..509de0a0 100644
--- a/lib/PublicInbox/Config.pm
+++ b/lib/PublicInbox/Config.pm
@@ -93,7 +93,7 @@ sub each_inbox {
         # may auto-vivify if config file is non-existent:
         foreach my $section (@{$self->{-section_order}}) {
                 next if $section !~ m!\Apublicinbox\.([^/]+)\z!;
-                $self->{"publicinbox.$1.mainrepo"} or next;
+                defined($self->{"publicinbox.$1.mainrepo"}) or next;
                 my $ibx = lookup_name($self, $1) or next;
                 $cb->($ibx);
         }