diff --git a/samples/server/petstore/php-slim4/.openapi-generator/FILES b/samples/server/petstore/php-slim4/.openapi-generator/FILES
index 09a56bb87d4..781243bb526 100644
--- a/samples/server/petstore/php-slim4/.openapi-generator/FILES
+++ b/samples/server/petstore/php-slim4/.openapi-generator/FILES
@@ -35,15 +35,4 @@ lib/Model/User.php
 lib/SlimRouter.php
 phpcs.xml.dist
 phpunit.xml.dist
-test/Api/PetApiTest.php
-test/Api/StoreApiTest.php
-test/Api/UserApiTest.php
 test/BaseModelTest.php
-test/Model/ApiResponseTest.php
-test/Model/CategoryTest.php
-test/Model/InlineObject1Test.php
-test/Model/InlineObjectTest.php
-test/Model/OrderTest.php
-test/Model/PetTest.php
-test/Model/TagTest.php
-test/Model/UserTest.php