lib/PublicInbox/NNTP.pm | 2 +-

diff --git a/lib/PublicInbox/NNTP.pm b/lib/PublicInbox/NNTP.pm
index 000b2c6140cb8a3c4e7dbdd3550a08ffd12e971d..944e9305da525545d348d4bca4fd78f9d178def2 100644
--- a/lib/PublicInbox/NNTP.pm
+++ b/lib/PublicInbox/NNTP.pm
@@ -114,7 +114,7 @@ 	my $res = eval { $req->($self, @args) };
 	my $err = $@;
 	if ($err && !$self->{closed}) {
 		chomp($l = Dumper(\$l));
-		err($self, "error from: $l $err");
+		err($self, "error from: $l ($err)");
 		$res = '503 program fault - command not performed';
 	}
 	return 0 unless defined $res;