diff --git a/core/modules/config/src/Tests/ConfigLanguageOverrideWebTest.php b/core/modules/config/src/Tests/ConfigLanguageOverrideWebTest.php
index f4d5acb..50e9ead 100644
--- a/core/modules/config/src/Tests/ConfigLanguageOverrideWebTest.php
+++ b/core/modules/config/src/Tests/ConfigLanguageOverrideWebTest.php
@@ -54,6 +54,9 @@ function testSiteNameTranslation() {
       ->set('name', 'XX site name')
       ->save();
 
+    // Place branding block with site name into header region.
+    $this->drupalPlaceBlock('system_branding_block', ['region' => 'header']);
+
     $this->drupalLogout();
 
     // The home page in English should not have the override.
diff --git a/core/modules/config/src/Tests/ConfigSingleImportExportTest.php b/core/modules/config/src/Tests/ConfigSingleImportExportTest.php
index 688d867..9537c38 100644
--- a/core/modules/config/src/Tests/ConfigSingleImportExportTest.php
+++ b/core/modules/config/src/Tests/ConfigSingleImportExportTest.php
@@ -126,6 +126,10 @@ public function testImport() {
   public function testImportSimpleConfiguration() {
     $this->drupalLogin($this->drupalCreateUser(array('import configuration')));
     $config = $this->config('system.site')->set('name', 'Test simple import');
+
+    // Place branding block with site name into header region.
+    $this->drupalPlaceBlock('system_branding_block', ['region' => 'header']);
+
     $edit = array(
       'config_type' => 'system.simple',
       'config_name' => $config->getName(),