diff --git a/symfony/twig-bundle/3.3/config/routes/dev/twig.yaml b/symfony/twig-bundle/3.3/config/routes/dev/twig.yaml
index a61972bf..f4ee8396 100644
--- a/symfony/twig-bundle/3.3/config/routes/dev/twig.yaml
+++ b/symfony/twig-bundle/3.3/config/routes/dev/twig.yaml
@@ -1,3 +1,3 @@
 _errors:
     resource: '@TwigBundle/Resources/config/routing/errors.xml'
-    prefix:   /_error
+    prefix: /_error