diff --git a/tests/unit/framework/helpers/FormatConverterTest.php b/tests/unit/framework/helpers/FormatConverterTest.php
index 38c6e6faf8..1bd198d80e 100644
--- a/tests/unit/framework/helpers/FormatConverterTest.php
+++ b/tests/unit/framework/helpers/FormatConverterTest.php
@@ -10,6 +10,7 @@ use yiiunit\TestCase;
 
 /**
  * @group helpers
+ * @group i18n
  */
 class FormatConverterTest extends TestCase
 {