diff --git a/core/lib/Drupal/Core/Render/theme.api.php b/core/lib/Drupal/Core/Render/theme.api.php
index cd6c678..c5e3e26 100644
--- a/core/lib/Drupal/Core/Render/theme.api.php
+++ b/core/lib/Drupal/Core/Render/theme.api.php
@@ -714,7 +714,6 @@ function hook_theme_suggestions_HOOK_alter(array &$suggestions, array $variables
   if ($node = \Drupal::routeMatch()->getParameter('node')) {
     $suggestions[] = 'page__' . $node->getType();
   }
-  return $suggestions;
 }
 
 /**