lib/PublicInbox/LI2Wrap.pm | 1 +

diff --git a/lib/PublicInbox/LI2Wrap.pm b/lib/PublicInbox/LI2Wrap.pm
index 61cf4beef081e6d7d4128484e88e0d5a9df6a1c2..204850a60fba54ab06b850619dca73e31b084e4e 100644
--- a/lib/PublicInbox/LI2Wrap.pm
+++ b/lib/PublicInbox/LI2Wrap.pm
@@ -12,6 +12,7 @@ sub wrapclose {
 	my ($inot) = @_;
 	my $fd = $inot->fileno;
 	open my $fh, '<&=', $fd or die "open <&= $fd $!";
+	bless $inot, __PACKAGE__;
 }
 
 sub DESTROY {} # no-op