core/modules/help/src/Plugin/Block/HelpBlock.php                    | 3 ++-
 core/modules/statistics/src/Plugin/Block/StatisticsPopularBlock.php | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/core/modules/help/src/Plugin/Block/HelpBlock.php b/core/modules/help/src/Plugin/Block/HelpBlock.php
index 7b86f9f..d86c1c7 100644
--- a/core/modules/help/src/Plugin/Block/HelpBlock.php
+++ b/core/modules/help/src/Plugin/Block/HelpBlock.php
@@ -9,6 +9,7 @@
 
 use Drupal\Core\Access\AccessResult;
 use Drupal\Core\Block\BlockBase;
+use Drupal\Core\Block\NonLazyBuildableBlockPluginInterface;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Drupal\Core\Routing\RouteMatchInterface;
@@ -24,7 +25,7 @@
  *   admin_label = @Translation("Help")
  * )
  */
-class HelpBlock extends BlockBase implements ContainerFactoryPluginInterface {
+class HelpBlock extends BlockBase implements ContainerFactoryPluginInterface, NonLazyBuildableBlockPluginInterface {
 
   /**
    * Stores the help text associated with the active menu item.
diff --git a/core/modules/statistics/src/Plugin/Block/StatisticsPopularBlock.php b/core/modules/statistics/src/Plugin/Block/StatisticsPopularBlock.php
index 6dd6f7f..daa0e09 100644
--- a/core/modules/statistics/src/Plugin/Block/StatisticsPopularBlock.php
+++ b/core/modules/statistics/src/Plugin/Block/StatisticsPopularBlock.php
@@ -9,6 +9,7 @@
 
 use Drupal\Core\Access\AccessResult;
 use Drupal\Core\Block\BlockBase;
+use Drupal\Core\Block\NonLazyBuildableBlockPluginInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Session\AccountInterface;
 
@@ -20,7 +21,7 @@
  *   admin_label = @Translation("Popular content")
  * )
  */
-class StatisticsPopularBlock extends BlockBase {
+class StatisticsPopularBlock extends BlockBase implements NonLazyBuildableBlockPluginInterface {
 
   /**
    * Number of day's top views to display.