diff --git a/DependencyInjection/NelmioApiDocExtension.php b/DependencyInjection/NelmioApiDocExtension.php
index 8dec3a7..0185ee4 100644
--- a/DependencyInjection/NelmioApiDocExtension.php
+++ b/DependencyInjection/NelmioApiDocExtension.php
@@ -72,6 +72,8 @@ final class NelmioApiDocExtension extends Extension implements PrependExtensionI
                     new TaggedIteratorArgument('nelmio_api_doc.model_describer'),
                 ]);
 
+            unset($areaConfig['documentation']);
+
             if (0 === count($areaConfig['path_patterns']) && 0 === count($areaConfig['host_patterns'])) {
                 $container->setDefinition(sprintf('nelmio_api_doc.routes.%s', $area), $routesDefinition)
                     ->setPublic(false);
diff --git a/Routing/FilteredRouteCollectionBuilder.php b/Routing/FilteredRouteCollectionBuilder.php
index 9c28a7e..0575c21 100644
--- a/Routing/FilteredRouteCollectionBuilder.php
+++ b/Routing/FilteredRouteCollectionBuilder.php
@@ -26,7 +26,6 @@ final class FilteredRouteCollectionBuilder
             ->setDefaults([
                 'path_patterns' => [],
                 'host_patterns' => [],
-                'documentation' => [],
             ])
             ->setAllowedTypes('path_patterns', 'string[]')
             ->setAllowedTypes('host_patterns', 'string[]')