lib/PublicInbox/InboxWritable.pm | 3 ---
 lib/PublicInbox/V2Writable.pm    | 3 ++-

diff --git a/lib/PublicInbox/InboxWritable.pm b/lib/PublicInbox/InboxWritable.pm
index 48d2267f3bfacb2cdd29049aec1d680103169850..c0e88f3d52ad1e21b6ec5a470ceff423af0fca5b 100644
--- a/lib/PublicInbox/InboxWritable.pm
+++ b/lib/PublicInbox/InboxWritable.pm
@@ -300,9 +300,6 @@ 		$cb->(@_);
 	}
 }
 
-# v2+ only
-sub git_dir_n { "$_[0]->{inboxdir}/git/$_[1].git" }
-
 # v2+ only, XXX: maybe we can just rely on ->max_git_epoch and remove
 sub git_dir_latest {
 	my ($self, $max) = @_;
diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index 7b8b5abf7a87140c67a3ffcbfeea893dbee610af..3e3b275f995f44e6a1403bdc382e71cbae213451 100644
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -1091,8 +1091,9 @@ 	}
 	if ($sync->{max_size} = $sync->{-opt}->{max_size}) {
 		$sync->{index_oid} = $self->can('index_oid');
 	}
+	my $git_pfx = "$sync->{ibx}->{inboxdir}/git";
 	for (my $i = $sync->{epoch_max}; $i >= 0; $i--) {
-		my $git_dir = $sync->{ibx}->git_dir_n($i);
+		my $git_dir = "$git_pfx/$i.git";
 		-d $git_dir or next; # missing epochs are fine
 		my $git = PublicInbox::Git->new($git_dir);
 		my $unit = { git => $git, epoch => $i };