diff --git a/src/Model/Table/LdapConnectionsTable.php b/src/Model/Table/LdapConnectionsTable.php
index 9820527..68a1d9e 100755
--- a/src/Model/Table/LdapConnectionsTable.php
+++ b/src/Model/Table/LdapConnectionsTable.php
@@ -365,7 +365,7 @@ class LdapConnectionsTable extends AppTable
                         $auth_dn = ''; //= $this->authDn;
                         $binddn = $this->authenticationType . '=' . $user_login;
                         $ldappass = $user_password;
-                        $filter = '('.$binddn.')';
+                        $filter = '('.$binddn.')'; // ex: "(uid=epallier)"
                     }
                     // - Authentified connection (CRAL)
                     else {
--
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