diff --git a/core/modules/datetime/src/DateTimeComputed.php b/core/modules/datetime/src/DateTimeComputed.php
index 2208ab7..73fb117 100644
--- a/core/modules/datetime/src/DateTimeComputed.php
+++ b/core/modules/datetime/src/DateTimeComputed.php
@@ -37,7 +37,7 @@ public function __construct(DataDefinitionInterface $definition, $name = NULL, T
   /**
    * {@inheritdoc}
    */
-  public function getValue($langcode = NULL) {
+  public function getValue() {
     if ($this->date !== NULL) {
       return $this->date;
     }