diff --git a/tests/Form/Type/DynamicFieldsTypeTest.php b/tests/Form/Type/DynamicFieldsTypeTest.php
index 6e30c26..23f117e 100644
--- a/tests/Form/Type/DynamicFieldsTypeTest.php
+++ b/tests/Form/Type/DynamicFieldsTypeTest.php
@@ -41,7 +41,7 @@ protected function setUp(): void
             /**
              * @param string[] $parameters this is for phpstan
              */
-            public function trans(string $id, array $parameters = [], string $domain = null, string $locale = null)
+            public function trans(string $id, array $parameters = [], string $domain = null, string $locale = null): string
             {
                 return $id;
             }