diff --git a/core/lib/Drupal/Core/Theme/ThemeManager.php b/core/lib/Drupal/Core/Theme/ThemeManager.php
index b7eff0bdd98..31c10a73949 100644
--- a/core/lib/Drupal/Core/Theme/ThemeManager.php
+++ b/core/lib/Drupal/Core/Theme/ThemeManager.php
@@ -93,13 +93,6 @@ class ThemeManager implements ThemeManagerInterface {
     return $this;
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  public function render($hook, array $variables) {
-    return $this->theme($hook, $variables);
-  }
-
   /**
    * {@inheritdoc}
    */
@@ -137,11 +130,9 @@ class ThemeManager implements ThemeManagerInterface {
   }
 
   /**
-   * Generates themed output (internal use only).
-   *
-   * @see \Drupal\Core\Render\RendererInterface::render();
+   * {@inheritdoc}
    */
-  protected function theme($hook, $variables = array()) {
+  public function render($hook, array $variables) {
     static $default_attributes;
 
     $active_theme = $this->getActiveTheme();