diff --git a/includes/bootstrap.inc b/includes/bootstrap.inc
index 4f1ba31b936..ba7ab0a0314 100644
--- a/includes/bootstrap.inc
+++ b/includes/bootstrap.inc
@@ -151,7 +151,7 @@ function drupal_unset_globals() {
  * Loads the configuration and sets the base URL correctly.
  */
 function conf_init() {
-  global $base_url, $base_path, $base_root, $conf;
+  global $db_url, $db_prefix, $base_url, $base_path, $base_root, $conf;
   $conf = array();
   require_once './'. conf_path() .'/settings.php';