diff --git a/tests/src/Functional/LanguageIntegrationTest.php b/tests/src/Functional/LanguageIntegrationTest.php
index 7ca7379..de63c96 100644
--- a/tests/src/Functional/LanguageIntegrationTest.php
+++ b/tests/src/Functional/LanguageIntegrationTest.php
@@ -87,7 +87,7 @@ class LanguageIntegrationTest extends FacetsTestBase {
       'name' => 'special-chars 1',
       'body' => 'test test test',
       'type' => 'article',
-      'keywords' => ['ƒäüö', 'test_key-word', 'special^%s'],
+      'keywords' => ['ƒäüö', 'test_key-word', 'special^%s', 'Key Word'],
       'category' => 'article_category',
     ])->save();
     $entity_test_storage->create([
@@ -106,6 +106,7 @@ class LanguageIntegrationTest extends FacetsTestBase {
     $this->assertFacetLabel('aáå');
     $this->assertFacetLabel('special^%s');
     $this->assertFacetLabel('test_key-word');
+    $this->assertFacetLabel('Key Word');
   }
 
 }