diff --git a/src/Symfony/Bundle/TwigBundle/Resources/config/twig.xml b/src/Symfony/Bundle/TwigBundle/Resources/config/twig.xml
index 2a8802b77a..ca427869a9 100644
--- a/src/Symfony/Bundle/TwigBundle/Resources/config/twig.xml
+++ b/src/Symfony/Bundle/TwigBundle/Resources/config/twig.xml
@@ -115,7 +115,7 @@
             <tag name="translation.extractor" alias="twig" />
         </service>
 
-        <service id="workflow.twig_extension" class="Symfony\Bridge\Twig\Extension\WorkflowExtension">
+        <service id="workflow.twig_extension" class="Symfony\Bridge\Twig\Extension\WorkflowExtension" public="true">
             <argument type="service" id="workflow.registry" />
         </service>