diff --git a/main/auth/cas/cas_var.inc.php b/main/auth/cas/cas_var.inc.php
index 0efd9b817f..fec9a322e5 100755
--- a/main/auth/cas/cas_var.inc.php
+++ b/main/auth/cas/cas_var.inc.php
@@ -7,6 +7,7 @@
 if (api_is_cas_activated()) {
     require_once __DIR__.'/../../../vendor/apereo/phpcas/source/CAS.php';
 
+    // Get the $cas array from app/config/auth.conf.php
     global $cas;
 
     if (is_array($cas) && array_key_exists('debug', $cas) && !empty($cas['debug'])) {
diff --git a/main/inc/lib/template.lib.php b/main/inc/lib/template.lib.php
index c257c51686..19e5b99596 100755
--- a/main/inc/lib/template.lib.php
+++ b/main/inc/lib/template.lib.php
@@ -1132,6 +1132,7 @@ class Template
      */
     public static function displayLoginForm()
     {
+        // Get the $cas array from app/config/auth.conf.php
         global $cas;
 
         if (is_array($cas) && array_key_exists('replace_login_form', $cas) && $cas['replace_login_form'] == true) {