1 files changed, 1 insertions, 1 deletions
diff --git a/t/cgi.t b/t/cgi.t
index ebf14160..f1a2730c 100644
--- a/t/cgi.t
+++ b/t/cgi.t
@@ -11,7 +11,7 @@ use IPC::Run qw/run/;
  use constant CGI => "blib/script/public-inbox.cgi";
  my $mda = "blib/script/public-inbox-mda";
  my $index = "blib/script/public-inbox-index";
-my $tmpdir = tempdir(CLEANUP => 1);
+my $tmpdir = tempdir('pi-cgi-XXXXXX', TMPDIR => 1, CLEANUP => 1);
  my $home = "$tmpdir/pi-home";
  my $pi_home = "$home/.public-inbox";
  my $pi_config = "$pi_home/config";