diff --git a/core/modules/config_translation/src/Tests/ConfigTranslationUiTest.php b/core/modules/config_translation/src/Tests/ConfigTranslationUiTest.php
index 2d2b6b4..4a804b6 100644
--- a/core/modules/config_translation/src/Tests/ConfigTranslationUiTest.php
+++ b/core/modules/config_translation/src/Tests/ConfigTranslationUiTest.php
@@ -128,8 +128,9 @@ protected function setUp() {
   public function testSiteInformationTranslationUi() {
     $this->drupalLogin($this->adminUser);
 
-    $site_name = 'Site name for testing configuration translation';
+    $site_name = 'Name of the site for testing configuration translation';
     $site_slogan = 'Site slogan for testing configuration translation';
+    $site_name_label = 'Site name';
     $fr_site_name = 'Nom du site pour tester la configuration traduction';
     $fr_site_slogan = 'Slogan du site pour tester la traduction de configuration';
     $fr_site_name_label = 'Libellé du champ "Nom du site"';
@@ -193,7 +194,7 @@ public function testSiteInformationTranslationUi() {
 
     // Translate 'Site name' label in French
     $search = array(
-      'string' => 'Site name',
+      'string' => $site_name_label,
       'langcode' => 'fr',
       'translation' => 'untranslated',
     );
@@ -206,10 +207,16 @@ public function testSiteInformationTranslationUi() {
     );
     $this->drupalPostForm('admin/config/regional/translate', $edit, t('Save translations'));
 
-
-    // Ensure that the label is translated in French
+    // Ensure that the label is in French (and not in English)
     $this->drupalGet("fr/$translation_base_url/fr/edit");
-    $this->assertText($fr_site_name_label, "The label '$fr_site_name_label' was not found");
+    $this->assertText($fr_site_name_label);
+    $this->assertNoText($site_name_label);
+
+    // Ensure that the label is also in French (and not in English)
+    // when editing another language with the interface in French
+    $this->drupalGet("fr/$translation_base_url/ta/edit");
+    $this->assertText($fr_site_name_label);
+    $this->assertNoText($site_name_label);
   }
 
   /**