diff --git a/core/modules/layout_builder/src/Entity/LayoutBuilderEntityViewDisplay.php b/core/modules/layout_builder/src/Entity/LayoutBuilderEntityViewDisplay.php
index c3a50ebc23..713ed9417f 100644
--- a/core/modules/layout_builder/src/Entity/LayoutBuilderEntityViewDisplay.php
+++ b/core/modules/layout_builder/src/Entity/LayoutBuilderEntityViewDisplay.php
@@ -301,7 +301,7 @@ protected function getContextsForEntity(FieldableEntityInterface $entity) {
    * @param \Drupal\Core\Cache\RefinableCacheableDependencyInterface|null $cacheability
    *   (optional) Refinable cacheability object, which will be populated based
    *   on the cacheability of each section storage candidate.
-   * @param \Drupal\Component\Plugin\Context\ContextInterface[]|null $contexts
+   * @param \Drupal\Component\Plugin\Context\ContextInterface[] $contexts
    *   (optional) The contexts which should be used to determine which storage
    *   to return.
    *
@@ -310,7 +310,7 @@ protected function getContextsForEntity(FieldableEntityInterface $entity) {
    *
    * @todo Deprecate this method in https://www.drupal.org/node/2986403.
    */
-  protected function getRuntimeSections(FieldableEntityInterface $entity, RefinableCacheableDependencyInterface &$cacheability = NULL, &$contexts = NULL) {
+  protected function getRuntimeSections(FieldableEntityInterface $entity, RefinableCacheableDependencyInterface &$cacheability = NULL, array &$contexts = []) {
     if (!$cacheability) {
       $cacheability = new CacheableMetadata();
     }