diff --git a/internet/AddTrust_External_Root.pem b/internet/AddTrust_External_Root.pem
new file mode 100644
index 0000000..20585f1
--- /dev/null
+++ b/internet/AddTrust_External_Root.pem
@@ -0,0 +1,25 @@
+-----BEGIN CERTIFICATE-----
+MIIENjCCAx6gAwIBAgIBATANBgkqhkiG9w0BAQUFADBvMQswCQYDVQQGEwJTRTEU
+MBIGA1UEChMLQWRkVHJ1c3QgQUIxJjAkBgNVBAsTHUFkZFRydXN0IEV4dGVybmFs
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+mnkPIAou1Z5jJh5VkpTYghdae9C8x49OhgQ=
+-----END CERTIFICATE-----
diff --git a/internet/eduroam.tml b/internet/eduroam.tml
index 8237df0..9e1a34d 100644
--- a/internet/eduroam.tml
+++ b/internet/eduroam.tml
@@ -52,7 +52,7 @@
       <li>Dans <code>Authentication</code>, choisissez <code>Tunneled TLS</code></li>
       <li>Dans <code>Anonymous Identity</code>, entrez <code>anonymous@ens.fr</code></li>
       <li>Dans <code>CA Certificate</code>, sélectionnez le
-        fichier <code>/etc/ssl/certs/AddTrust_External_Root.pem</code></li>
+        fichier <code>/etc/ssl/certs/AddTrust_External_Root.pem</code> (si vous ne l'avez pas, <a href="AddTrust_External_Root.pem">récupérez-le ici</a>)</li>
       <li>Dans <code>Inner authentication</code>, sélectionnez <code>PAP</code></li>
       <li>Entrez votre identifiant ENT/GPS <strong>en
           ajoutant <code>@ens.fr</code> à la fin</strong> (par