diff --git a/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigEntityReferenceItemBase.php b/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigEntityReferenceItemBase.php
index 524a2ba..95a4103 100644
--- a/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigEntityReferenceItemBase.php
+++ b/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigEntityReferenceItemBase.php
@@ -139,7 +139,7 @@ public function getSettableOptions() {
       // We are at the field item level, so we need to go two levels up to get
       // to the entity object.
       $entity = $this->getParent()->getParent();
-      return $callback($this->getInstance(), $entity);
+      return $callback($this->getFieldDefinition(), $entity);
     }
   }
 
diff --git a/core/modules/field/lib/Drupal/field/Plugin/field/field_type/LegacyConfigFieldItem.php b/core/modules/field/lib/Drupal/field/Plugin/field/field_type/LegacyConfigFieldItem.php
index 01564e0..19673e9 100644
--- a/core/modules/field/lib/Drupal/field/Plugin/field/field_type/LegacyConfigFieldItem.php
+++ b/core/modules/field/lib/Drupal/field/Plugin/field/field_type/LegacyConfigFieldItem.php
@@ -119,7 +119,7 @@ public function getSettableOptions() {
     $callback = "{$definition['provider']}_options_list";
     if (function_exists($callback)) {
       $entity = $this->getParent()->getParent();
-      return $callback($this->getInstance(), $entity);
+      return $callback($this->getFieldDefinition(), $entity);
     }
   }