diff --git a/libraries/Config.class.php b/libraries/Config.class.php
index 2edec8530..5ed7c5772 100644
--- a/libraries/Config.class.php
+++ b/libraries/Config.class.php
@@ -676,9 +676,7 @@ class PMA_Config
             if (substr($pma_absolute_uri, 0, 7) != 'http://'
               && substr($pma_absolute_uri, 0, 8) != 'https://') {
                 $pma_absolute_uri =
-                    (PMA_getenv('HTTPS') && strtolower(PMA_getenv('HTTPS')) != 'off'
-                        ? 'https'
-                        : 'http')
+                    ($is_https ? 'https' : 'http')
                     . ':' . (substr($pma_absolute_uri, 0, 2) == '//' ? '' : '//')
                     . $pma_absolute_uri;
             }