diff --git a/core/lib/Drupal/Core/TypedData/ListDataDefinition.php b/core/lib/Drupal/Core/TypedData/ListDataDefinition.php
index e0fd530..db8429d 100644
--- a/core/lib/Drupal/Core/TypedData/ListDataDefinition.php
+++ b/core/lib/Drupal/Core/TypedData/ListDataDefinition.php
@@ -103,7 +103,7 @@ public function getItemDefinition() {
   /**
    * Sets the item definition.
    *
-   * @param \Drupal\Core\TypedData\DataDefinition $definition
+   * @param \Drupal\Core\TypedData\DataDefinitionInterface $definition
    *   A list item's data definition.
    *
    * @return $this