diff --git a/core/modules/block/lib/Drupal/block/Plugin/Type/BlockManager.php b/core/modules/block/lib/Drupal/block/Plugin/Type/BlockManager.php
index 9c30cfb..86d04b2 100644
--- a/core/modules/block/lib/Drupal/block/Plugin/Type/BlockManager.php
+++ b/core/modules/block/lib/Drupal/block/Plugin/Type/BlockManager.php
@@ -27,7 +27,7 @@ class BlockManager extends DefaultPluginManager {
    *
    * @var array
    */
-  protected $moduleData;
+  protected $moduleNames;
 
   /**
    * The translation manager.
@@ -88,12 +88,12 @@ public function processDefinition(&$definition, $plugin_id) {
    */
   protected function getModuleName($module) {
     // Gather module data.
-    if (!isset($this->moduleData)) {
-      $this->moduleData = system_get_info('module');
+    if (!isset($this->moduleNames)) {
+      $this->moduleNames = system_get_module_info('name');
     }
     // If the module exists, return its human-readable name.
-    if (isset($this->moduleData[$module])) {
-      return $this->t($this->moduleData[$module]['name']);
+    if (isset($this->moduleNames[$module])) {
+      return $this->t($this->moduleNames[$module]);
     }
     // Otherwise, return the machine name.
     return $module;