diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 83204cc..95405b9 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -40,12 +40,6 @@ final class Configuration implements ConfigurationInterface
                 ->thenInvalid('You must not use both `nelmio_api_doc.areas` and `nelmio_api_doc.routes` config options. Please update your config to only use `nelmio_api_doc.areas`.')
             ->end()
             ->children()
-                ->arrayNode('documentation')
-                    ->useAttributeAsKey('key')
-                    ->info('The documentation used as base')
-                    ->example(['info' => ['title' => 'My App']])
-                    ->prototype('variable')->end()
-                ->end()
                 ->arrayNode('areas')
                     ->info('Filter the routes that are documented')
                     ->defaultValue(['default' => ['path_patterns' => [], 'host_patterns' => []]])
@@ -77,6 +71,12 @@ final class Configuration implements ConfigurationInterface
                                 ->example(['^api\.'])
                                 ->prototype('scalar')->end()
                             ->end()
+                            ->arrayNode('documentation')
+                                ->useAttributeAsKey('key')
+                                ->info('The documentation used as base')
+                                ->example(['info' => ['title' => 'My App']])
+                                ->prototype('variable')->end()
+                            ->end()
                         ->end()
                     ->end()
                 ->end()
diff --git a/DependencyInjection/NelmioApiDocExtension.php b/DependencyInjection/NelmioApiDocExtension.php
index 1522712..8f80212 100644
--- a/DependencyInjection/NelmioApiDocExtension.php
+++ b/DependencyInjection/NelmioApiDocExtension.php
@@ -13,6 +13,7 @@ namespace Nelmio\ApiDocBundle\DependencyInjection;
 
 use FOS\RestBundle\Controller\Annotations\ParamInterface;
 use Nelmio\ApiDocBundle\ApiDocGenerator;
+use Nelmio\ApiDocBundle\Describer\ExternalDocDescriber;
 use Nelmio\ApiDocBundle\Describer\RouteDescriber;
 use Nelmio\ApiDocBundle\Describer\SwaggerPhpDescriber;
 use Nelmio\ApiDocBundle\ModelDescriber\BazingaHateoasModelDescriber;
@@ -103,6 +104,16 @@ final class NelmioApiDocExtension extends Extension implements PrependExtensionI
                     new Reference('logger'),
                 ])
                 ->addTag(sprintf('nelmio_api_doc.describer.%s', $area), ['priority' => -200]);
+
+            $container->register(sprintf('nelmio_api_doc.describers.config.%s', $area), ExternalDocDescriber::class)
+                ->setPublic(false)
+                ->setArguments([
+                    $config['areas'][$area]['documentation'],
+                    true,
+                ])
+                ->addTag(sprintf('nelmio_api_doc.describer.%s', $area), ['priority' => 1000]);
+
+            $container->getDefinition(sprintf('nelmio_api_doc.describers.config.%s', $area))->replaceArgument(0, $config['areas'][$area]['documentation']);
         }
 
         $container->register('nelmio_api_doc.generator_locator')
@@ -151,9 +162,6 @@ final class NelmioApiDocExtension extends Extension implements PrependExtensionI
                     ]);
             }
         }
-
-        // Import the base configuration
-        $container->getDefinition('nelmio_api_doc.describers.config')->replaceArgument(0, $config['documentation']);
     }
 
     private function findNameAliases(array $names, string $area): array
diff --git a/Resources/config/services.xml b/Resources/config/services.xml
index 1f4393a..17dcbed 100644
--- a/Resources/config/services.xml
+++ b/Resources/config/services.xml
@@ -26,7 +26,7 @@
         <service id="nelmio_api_doc.describers.config" class="Nelmio\ApiDocBundle\Describer\ExternalDocDescriber" public="false">
             <argument type="collection" />
 
-            <tag name="nelmio_api_doc.describer" priority="1000" />
+            <tag name="nelmio_api_doc.describer" priority="-1000" />
         </service>
 
         <service id="nelmio_api_doc.describers.default" class="Nelmio\ApiDocBundle\Describer\DefaultDescriber" public="false">
diff --git a/Routing/FilteredRouteCollectionBuilder.php b/Routing/FilteredRouteCollectionBuilder.php
index 0575c21..9c28a7e 100644
--- a/Routing/FilteredRouteCollectionBuilder.php
+++ b/Routing/FilteredRouteCollectionBuilder.php
@@ -26,6 +26,7 @@ final class FilteredRouteCollectionBuilder
             ->setDefaults([
                 'path_patterns' => [],
                 'host_patterns' => [],
+                'documentation' => [],
             ])
             ->setAllowedTypes('path_patterns', 'string[]')
             ->setAllowedTypes('host_patterns', 'string[]')