diff --git a/core/modules/user/user.module b/core/modules/user/user.module
index 747758d31527df6f3911964f7452fa19b1f8c2b7..3082cde39d8e88e4e3e09526f296134ed9ed2254 100644
--- a/core/modules/user/user.module
+++ b/core/modules/user/user.module
@@ -2814,6 +2814,9 @@ function user_library_info() {
     'js' => array(
       drupal_get_path('module', 'user') . '/user.js' => array(),
     ),
+    'css' => array(
+      drupal_get_path('module', 'user') . '/user.css' => array(),
+    ),
     'dependencies' => array(
       array('system', 'jquery'),
       array('system', 'drupal'),