diff --git a/core/lib/Drupal/Core/Plugin/DefaultPluginManager.php b/core/lib/Drupal/Core/Plugin/DefaultPluginManager.php
index 3220ec05bf..cb4a0335dd 100644
--- a/core/lib/Drupal/Core/Plugin/DefaultPluginManager.php
+++ b/core/lib/Drupal/Core/Plugin/DefaultPluginManager.php
@@ -4,7 +4,6 @@
 
 use Doctrine\Common\Annotations\AnnotationReader;
 use Doctrine\Common\Annotations\AnnotationRegistry;
-use Doctrine\Common\Annotations\SimpleAnnotationReader;
 use Drupal\Component\Assertion\Inspector;
 use Drupal\Component\Plugin\Definition\PluginDefinitionInterface;
 use Drupal\Component\Plugin\Discovery\CachedDiscoveryInterface;
@@ -274,7 +273,7 @@ public function processDefinition(&$definition, $plugin_id) {
           $services[$property->name] = $annotation->get();
         }
       }
-      if ($services) {
+      if (!empty($services)) {
         if ($definition instanceof PluginDefinitionInterface) {
           $definition->services = $services;
         }