2 files changed, 3 insertions, 1 deletions
diff --git a/Changelog b/Changelog
index c476ee1..5dd416a 100644
--- a/Changelog
+++ b/Changelog
@@ -52,6 +52,8 @@ lacme (0.7.1) upstream;
  - client: avoid "Use of uninitialized value in pattern match (m//)"
    perl warnings when the accountd socket can't be reached.
  - webserver: reopen stdin from /dev/null.
+ - Use 'acme-challenge.XXXXXXXXXX' as template for the temporary ACME
+   challenge directory.
 
  -- Guilhem Moulin <guilhem@fripost.org>  Wed, 09 Dec 2020 18:23:22 +0100
 
diff --git a/lacme b/lacme
index e5f8715..354a4a0 100755
--- a/lacme
+++ b/lacme
@@ -327,7 +327,7 @@ sub spawn_webserver() {
 
     # create a temporary directory; give write access to the ACME client
     # and read access to the webserver
-    my $tmpdir = File::Temp::->newdir(CLEANUP => 1, TMPDIR => 1) // die;
+    my $tmpdir = File::Temp::->newdir(CLEANUP => 1, TMPDIR => 1, TEMPLATE => "acme-challenge.XXXXXXXXXX") // die;
     chmod 0755, $tmpdir or die "chmod: $!";
     if ((my $username = $CONFIG->{client}->{user}) ne '') {
         my $uid = getpwnam($username) // die "getpwnam($username): $!";