diff --git a/core/lib/Drupal/Core/Command/InstallCommand.php b/core/lib/Drupal/Core/Command/InstallCommand.php
index 2e73df37962dcb4321958c85d7e946d65b9870fb..92ca6a255a4c3cde498d969224781feca60aab76 100644
--- a/core/lib/Drupal/Core/Command/InstallCommand.php
+++ b/core/lib/Drupal/Core/Command/InstallCommand.php
@@ -158,8 +158,9 @@ protected function install($class_loader, SymfonyStyle $io, $profile, $langcode,
             ],
           ],
           'enable_update_status_module' => TRUE,
-          // form_type_checkboxes_value() requires NULL instead of FALSE values
-          // for programmatic form submissions to disable a checkbox.
+          // \Drupal\Core\Render\Element\Checkboxes::valueCallback() requires
+          // NULL instead of FALSE values for programmatic form submissions to
+          // disable a checkbox.
           'enable_update_status_emails' => NULL,
         ],
       ],
diff --git a/core/lib/Drupal/Core/Test/FunctionalTestSetupTrait.php b/core/lib/Drupal/Core/Test/FunctionalTestSetupTrait.php
index c102459182c318d1c8f509a1720c3a006a7d55c9..32cb051dd698512213e7cbd2651a33614af33f63 100644
--- a/core/lib/Drupal/Core/Test/FunctionalTestSetupTrait.php
+++ b/core/lib/Drupal/Core/Test/FunctionalTestSetupTrait.php
@@ -548,8 +548,9 @@ protected function installParameters() {
               'pass2' => $this->rootUser->pass_raw ?? $this->rootUser->passRaw,
             ],
           ],
-          // form_type_checkboxes_value() requires NULL instead of FALSE values
-          // for programmatic form submissions to disable a checkbox.
+          // \Drupal\Core\Render\Element\Checkboxes::valueCallback() requires
+          // NULL instead of FALSE values for programmatic form submissions to
+          // disable a checkbox.
           'enable_update_status_module' => NULL,
           'enable_update_status_emails' => NULL,
         ],