diff --git a/core/modules/config/src/Tests/ConfigLanguageOverrideWebTest.php b/core/modules/config/src/Tests/ConfigLanguageOverrideWebTest.php
index 50e9ead..79ed24c 100644
--- a/core/modules/config/src/Tests/ConfigLanguageOverrideWebTest.php
+++ b/core/modules/config/src/Tests/ConfigLanguageOverrideWebTest.php
@@ -23,7 +23,11 @@ class ConfigLanguageOverrideWebTest extends WebTestBase {
    *
    * @var array
    */
-  public static $modules = array('language', 'system');
+  public static $modules = [
+    'block',
+    'language',
+    'system'
+  ];
 
   /**
    * {@inheritdoc}
diff --git a/core/modules/config/src/Tests/ConfigSingleImportExportTest.php b/core/modules/config/src/Tests/ConfigSingleImportExportTest.php
index 9537c38..0a382e2 100644
--- a/core/modules/config/src/Tests/ConfigSingleImportExportTest.php
+++ b/core/modules/config/src/Tests/ConfigSingleImportExportTest.php
@@ -22,7 +22,11 @@ class ConfigSingleImportExportTest extends WebTestBase {
    *
    * @var array
    */
-  public static $modules = array('config', 'config_test');
+  public static $modules = [
+    'block',
+    'config',
+    'config_test'
+  ];
 
   /**
    * Tests importing a single configuration file.