diff --git a/tests/src/Kernel/Processor/AddHierarchyTest.php b/tests/src/Kernel/Processor/AddHierarchyTest.php
index 9ccfcdd..5912c97 100644
--- a/tests/src/Kernel/Processor/AddHierarchyTest.php
+++ b/tests/src/Kernel/Processor/AddHierarchyTest.php
@@ -14,6 +14,8 @@
 /**
  * Tests the 'add_hierarchy' processor.
  *
+ * @group search_api
+ *
  * @coversDefaultClass \Drupal\search_api\Plugin\search_api\processor\AddHierarchy
  */
 class AddHierarchyTest extends ProcessorTestBase {