diff --git a/uc_cart/lib/Drupal/uc_cart/Controller/CheckoutController.php b/uc_cart/lib/Drupal/uc_cart/Controller/CheckoutController.php
index b0fd505..e9e0216 100644
--- a/uc_cart/lib/Drupal/uc_cart/Controller/CheckoutController.php
+++ b/uc_cart/lib/Drupal/uc_cart/Controller/CheckoutController.php
@@ -192,6 +192,7 @@ class CheckoutController extends ControllerBase implements ContainerInjectionInt
 
     $build['#attached']['library'][] = array('system', 'drupal');
     $build['#attached']['library'][] = array('system', 'jquery.once');
+    $build['#attached']['css'][] = drupal_get_path('module', 'uc_cart') . '/css/uc_cart.css';
     $build['#attached']['js'][] = drupal_get_path('module', 'uc_cart') . '/js/uc_cart.js';
 
     return $build;
diff --git a/uc_cart/uc_cart.pages.inc b/uc_cart/uc_cart.pages.inc
index 7d43b62..a0042d8 100644
--- a/uc_cart/uc_cart.pages.inc
+++ b/uc_cart/uc_cart.pages.inc
@@ -26,8 +26,6 @@ function theme_uc_cart_checkout_review($variables) {
   $panes = $variables['panes'];
   $form = $variables['form'];
 
-  drupal_add_css(drupal_get_path('module', 'uc_cart') . '/css/uc_cart.css');
-
   $output = '<p>' . t("Your order is almost complete. Please review the details below and click 'Submit order' if all the information is correct.  You may use the 'Back' button to make changes to your order if necessary.") . '</p>';
 
   $output .= '<table class="order-review-table">';