diff --git a/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldDeleteForm.php b/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldDeleteForm.php
index 5b6fa23..265142b 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldDeleteForm.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldDeleteForm.php
@@ -65,7 +65,7 @@ public function buildForm(array $form, array &$form_state, FieldInstance $field_
   public function submitForm(array &$form, array &$form_state) {
     form_load_include($form_state, 'inc', 'field_ui', 'field_ui.admin');
 
-    $field = field_info_field($this->instance->field_name);
+    $field = $this->instance->getField();
     $bundles = entity_get_bundles();
     $bundle_label = $bundles[$this->instance->entity_type][$this->instance->bundle]['label'];
 
diff --git a/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldSettingsForm.php b/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldSettingsForm.php
index 6380f39..7e87f35 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldSettingsForm.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldSettingsForm.php
@@ -34,7 +34,7 @@ public function getFormID() {
    */
   public function buildForm(array $form, array &$form_state, FieldInstance $field_instance = NULL) {
     $this->instance = $form_state['instance'] = $field_instance;
-    $field = field_info_field($this->instance->field_name);
+    $field = $this->instance->getField();
     $form['#field'] = $field;
 
     drupal_set_title($this->instance->label());