diff --git a/Resources/config/services.xml b/Resources/config/services.xml
index 107ada3..117cf2d 100644
--- a/Resources/config/services.xml
+++ b/Resources/config/services.xml
@@ -15,7 +15,7 @@
         </service>
 
         <!-- Swagger Spec Generator -->
-        <service id="nelmio_api_doc.generator" alias="nelmio_api_doc.generator.default" />
+        <service id="nelmio_api_doc.generator" alias="nelmio_api_doc.generator.default" public="true" />
 
         <service id="nelmio_api_doc.controller_reflector" class="Nelmio\ApiDocBundle\Util\ControllerReflector" public="false">
             <argument type="service" id="service_container" />