1 files changed, 2 insertions, 1 deletions
diff --git a/t/nntpd.t b/t/nntpd.t
index 527cfc2c..d30ed63f 100644
--- a/t/nntpd.t
+++ b/t/nntpd.t
@@ -44,7 +44,6 @@ my %opts = (
          Listen => 1024,
  );
  my $sock = IO::Socket::INET->new(%opts);
-plan skip_all => 'sock fd!=3, cannot test nntpd integration' if fileno($sock) != 3;
  my $pid;
  END { kill 'TERM', $pid if defined $pid };
  {
@@ -78,8 +77,10 @@ EOF
          is($fl, FD_CLOEXEC, 'cloexec set by default (Perl behavior)');
          $pid = fork;
          if ($pid == 0) {
+                use POSIX qw(dup2);
                  # pretend to be systemd
                  fcntl($sock, F_SETFD, $fl &= ~FD_CLOEXEC);
+                dup2(fileno($sock), 3) or die "dup2 failed: $!\n";
                  $ENV{LISTEN_PID} = $$;
                  $ENV{LISTEN_FDS} = 1;
                  exec $nntpd, "--stdout=$out", "--stderr=$err";