diff --git a/src/Generator/Spec/ApiAbstract.php b/src/Generator/Spec/ApiAbstract.php
index 3f885e1..5da8172 100644
--- a/src/Generator/Spec/ApiAbstract.php
+++ b/src/Generator/Spec/ApiAbstract.php
@@ -20,7 +20,6 @@
 
 namespace PSX\Api\Generator\Spec;
 
-use PSX\Api\Generator\ConfigurationAwareInterface;
 use PSX\Api\GeneratorInterface;
 
 /**
@@ -28,7 +27,7 @@
  * @license http://www.apache.org/licenses/LICENSE-2.0
  * @link    https://phpsx.org
  */
-abstract class ApiAbstract implements GeneratorInterface, ConfigurationAwareInterface
+abstract class ApiAbstract implements GeneratorInterface
 {
     public const FLOW_AUTHORIZATION_CODE = 0;
     public const FLOW_IMPLICIT = 1;
diff --git a/src/Generator/Spec/OpenAPI.php b/src/Generator/Spec/OpenAPI.php
index 6e38bfd..68d8941 100644
--- a/src/Generator/Spec/OpenAPI.php
+++ b/src/Generator/Spec/OpenAPI.php
@@ -20,6 +20,7 @@
 
 namespace PSX\Api\Generator\Spec;
 
+use PSX\Api\Generator\ConfigurationAwareInterface;
 use PSX\Api\Generator\ConfigurationTrait;
 use PSX\Api\Operation\Argument;
 use PSX\Api\OperationInterface;
@@ -62,11 +63,12 @@
 /**
  * Generates an OpenAPI 3.0 representation of an API resource
  *
+ * @see     https://www.openapis.org/
  * @author  Christoph Kappestein <christoph.kappestein@gmail.com>
  * @license http://www.apache.org/licenses/LICENSE-2.0
  * @link    https://phpsx.org
  */
-class OpenAPI extends ApiAbstract
+class OpenAPI extends ApiAbstract implements ConfigurationAwareInterface
 {
     use ConfigurationTrait;
 
diff --git a/src/Generator/Spec/TypeAPI.php b/src/Generator/Spec/TypeAPI.php
index d30a0c0..a9786f8 100644
--- a/src/Generator/Spec/TypeAPI.php
+++ b/src/Generator/Spec/TypeAPI.php
@@ -20,6 +20,7 @@
 
 namespace PSX\Api\Generator\Spec;
 
+use PSX\Api\Generator\ConfigurationAwareInterface;
 use PSX\Api\Generator\ConfigurationTrait;
 use PSX\Api\GeneratorInterface;
 use PSX\Api\SecurityInterface;
@@ -32,12 +33,12 @@
 /**
  * TypeAPI
  *
- * @see     https://typeschema.org/
+ * @see     https://typeapi.org/
  * @author  Christoph Kappestein <christoph.kappestein@gmail.com>
  * @license http://www.apache.org/licenses/LICENSE-2.0
  * @link    https://phpsx.org
  */
-class TypeAPI implements GeneratorInterface
+class TypeAPI implements GeneratorInterface, ConfigurationAwareInterface
 {
     use ConfigurationTrait;