diff --git a/lib/LDV/Zerobin.pm b/lib/LDV/Zerobin.pm
index f551696..e1d9962 100644
--- a/lib/LDV/Zerobin.pm
+++ b/lib/LDV/Zerobin.pm
@@ -104,13 +104,14 @@ sub prune
     my $json = Mojo::JSON->new;
     foreach my $file (@$files) {
       next unless $file =~ m/^(\d+)\.json$/oi;
-      my $paste_time = $1;
-      my $path = "$storage/$file";
-      my $data = $json->decode($self->app->home->slurp_rel_file("$storage/$file"));
+      my $time = $1;
+      my $path = $self->app->home->rel_file("$storage/$file");
+      my $asset = Mojo::Asset::File->new(path => $path);
+      my $data = $json->decode($asset->slurp);
       next if ($data->{expire} > $time); # not yet
       my $date = strftime("%Y-%m-%d %H:%M", localtime($data->{expire}));
       $self->app->log->info("Removing expired paste: $file ($date)");
-      unlink $self->_paste_path($paste_time);
+      unlink $path;
     } 1;
   } or do {
     chomp $@;