diff --git a/core/lib/Drupal/Core/TypedData/TypedData.php b/core/lib/Drupal/Core/TypedData/TypedData.php
index 32baa80..72815e9 100644
--- a/core/lib/Drupal/Core/TypedData/TypedData.php
+++ b/core/lib/Drupal/Core/TypedData/TypedData.php
@@ -220,8 +220,7 @@ public function getParent() {
    *   The data, without any wrapping Typed Data object.
    */
   public function unwrap() {
-    $type_definition = $this->getDefinition($definition->getDataType());
-    if (!empty($type_definition['wrapped'])) {
+    if (!empty($this->definition['wrapped'])) {
       return $data->getValue();
     }
     return $data;