diff --git a/core/lib/Drupal/Core/Entity/Field/FieldTypePluginManager.php b/core/lib/Drupal/Core/Entity/Field/FieldTypePluginManager.php
index 7e867ec..6ea2e82 100644
--- a/core/lib/Drupal/Core/Entity/Field/FieldTypePluginManager.php
+++ b/core/lib/Drupal/Core/Entity/Field/FieldTypePluginManager.php
@@ -102,12 +102,11 @@ public function getDefaultInstanceSettings($type) {
   public function getOptions($type = NULL) {
     if (!isset($this->fieldTypeOptions)) {
       $options = array();
-      $field_types = $this->getDefinitions();
       // Gather valid field types.
-      foreach ($field_types as $name => $field_type) {
+      foreach ($this->getDefinitions() as $field_type => $definition) {
         // Skip field types which should not be added via user interface.
-        if (empty($field_type['no_ui'])) {
-          $options[$name] = $field_type['label'];
+        if (empty($definition['no_ui'])) {
+          $options[$field_type] = $definition['label'];
         }
       }
       asort($options);