lib/PublicInbox/V2Writable.pm | 2 +-

diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index 81c7a4d16c0189902d87fbc052ac4d26e57b1c04..0470fb0ef5a14e6fc44218585000ee337e2095a0 100644
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -115,7 +115,7 @@ }
 
 sub done {
 	my ($self) = @_;
-	my $im = $self->{im};
+	my $im = delete $self->{im};
 	$im->done if $im; # PublicInbox::Import::done
 	$self->searchidx_checkpoint(0);
 }