diff --git a/modules/profile/profile.admin.inc b/modules/profile/profile.admin.inc
index 01f3bda32e66f0c579db8329b9d4ebe383b3474d..16f5860e474f506b52eff7e91053012619f77c12 100644
--- a/modules/profile/profile.admin.inc
+++ b/modules/profile/profile.admin.inc
@@ -401,6 +401,5 @@ function profile_admin_settings_autocomplete($string) {
   while ($data = db_fetch_object($result)) {
     $matches[$data->category] = check_plain($data->category);
   }
-  print drupal_to_js($matches);
-  exit();
+  drupal_json($matches);
 }
diff --git a/modules/system/system.admin.inc b/modules/system/system.admin.inc
index 99033a32626ed11bb7d7e1dde95ac17073565a09..e7c378044d7480cc602dff7058260caf33bfba09 100644
--- a/modules/system/system.admin.inc
+++ b/modules/system/system.admin.inc
@@ -1717,8 +1717,7 @@ function system_date_time_settings_submit($form, &$form_state) {
  */
 function system_date_time_lookup() {
   $result = format_date(REQUEST_TIME, 'custom', $_GET['format']);
-  echo drupal_to_js($result);
-  exit;
+  drupal_json($result);
 }
 
 /**