diff --git a/core/lib/Drupal/Core/TypedData/ListDefinition.php b/core/lib/Drupal/Core/TypedData/ListDefinition.php
index 39896a0..7ca173b 100644
--- a/core/lib/Drupal/Core/TypedData/ListDefinition.php
+++ b/core/lib/Drupal/Core/TypedData/ListDefinition.php
@@ -29,12 +29,7 @@ class ListDefinition extends DataDefinition implements ListDefinitionInterface {
    *   A new List Data Definition object.
    */
   public static function create($type = NULL) {
-    if (!empty($type)) {
-      $definition['type'] = $type;
-    }
-    else {
-      $definition = array();
-    }
+    $definition['type'] = $type;
     return new static($definition);
   }