diff -u b/core/modules/migrate_drupal/src/Tests/Table/d7/Variable.php b/core/modules/migrate_drupal/src/Tests/Table/d7/Variable.php
--- b/core/modules/migrate_drupal/src/Tests/Table/d7/Variable.php
+++ b/core/modules/migrate_drupal/src/Tests/Table/d7/Variable.php
@@ -719 +719 @@
-#3de49527faa2cd3e07401b5d941f1ca7
+#d20a0a7f31645aba285f0ce7505c80a5
diff -u b/core/modules/statistics/config/schema/statistics.schema.yml b/core/modules/statistics/config/schema/statistics.schema.yml
--- b/core/modules/statistics/config/schema/statistics.schema.yml
+++ b/core/modules/statistics/config/schema/statistics.schema.yml
@@ -19,0 +20,17 @@
+
+block.settings.statistics_popular_block:
+  type: block_settings
+  label: 'Popular content block settings'
+  mapping:
+    langcode:
+      type: string
+      label: 'Language code'
+    top_day_num:
+      type: integer
+      label: 'Number of day\s top views to display'
+    top_all_num:
+      type: integer
+      label: 'Number of all time views to display'
+    top_last_num:
+      type: integer
+      label: 'Number of most recent views to display'
diff -u b/core/modules/statistics/migration_templates/statistics_popular_block_settings.yml b/core/modules/statistics/migration_templates/statistics_popular_block_settings.yml
--- b/core/modules/statistics/migration_templates/statistics_popular_block_settings.yml
+++ b/core/modules/statistics/migration_templates/statistics_popular_block_settings.yml
@@ -13,8 +13,6 @@
-  settings/top_day_num: statistics_block_top_day_num
-  settings/top_all_num: statistics_block_top_all_num
-  settings/top_last_num: statistics_block_top_last_num
+  top_day_num: statistics_block_top_day_num
+  top_all_num: statistics_block_top_all_num
+  top_last_num: statistics_block_top_last_num
 destination:
   plugin: config
-  config_name: block.block.popularcontent
-migration_dependences:
-  - d7_block
+  config_name: block.settings.statistics_popular_block
diff -u b/core/modules/statistics/src/Tests/Migrate/MigrateStatisticsPopularBlockSettingsTest.php b/core/modules/statistics/src/Tests/Migrate/MigrateStatisticsPopularBlockSettingsTest.php
--- b/core/modules/statistics/src/Tests/Migrate/MigrateStatisticsPopularBlockSettingsTest.php
+++ b/core/modules/statistics/src/Tests/Migrate/MigrateStatisticsPopularBlockSettingsTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\statistics\Tests\Migrate;
 
-use Drupal\block_content\Entity\BlockContent;
 use Drupal\config\Tests\SchemaCheckTestTrait;
 use Drupal\migrate_drupal\Tests\d7\MigrateDrupal7TestBase;
 
@@ -27,7 +26,7 @@
    */
   protected function setUp() {
     parent::setUp();
-    $this->installConfig(static::$modules);
+    $this->installConfig(['statistics']);
     $this->executeMigration('statistics_popular_block_settings');
   }
 
@@ -35,10 +34,11 @@
    * Tests migration of Popular block settings into configuration.
    */
   public function testMigration() {
-    $config = $this->config('block.block.popularcontent');
-    $this->assertIdentical(55, $config->get('settings.top_all_num'));
-    $this->assertIdentical(30, $config->get('settings.top_day_num'));
-    $this->assertIdentical(9, $config->get('settings.top_last_num'));
+    $config = \Drupal::config('block.settings.statistics_popular_block')->get();
+    $this->assertIdentical(55, $config['top_all_num']);
+    $this->assertIdentical(30, $config['top_day_num']);
+    $this->assertIdentical(9, $config['top_last_num']);
+    $this->assertConfigSchema(\Drupal::service('config.typed'), 'block.settings.statistics_popular_block', $config);
   }
 
 }