diff --git a/core/lib/Drupal/Core/Entity/Plugin/DataType/ConfigEntityAdapter.php b/core/lib/Drupal/Core/Entity/Plugin/DataType/ConfigEntityAdapter.php
index 55a8bba0b988e2216dfb97035248470865e8f94d..8baa4a495a79170766d455a0a014f63fb70e1e26 100644
--- a/core/lib/Drupal/Core/Entity/Plugin/DataType/ConfigEntityAdapter.php
+++ b/core/lib/Drupal/Core/Entity/Plugin/DataType/ConfigEntityAdapter.php
@@ -136,7 +136,7 @@ public function applyDefaultValue($notify = TRUE) {
   /**
    * Gets typed data for config entity.
    *
-   * @return \Drupal\Core\TypedData\ComplexDataInterface
+   * @return \Drupal\Core\TypedData\TraversableTypedDataInterface
    *   The typed data.
    */
   protected function getConfigTypedData() {