diff --git a/src/Symfony/Bundle/TwigBundle/composer.json b/src/Symfony/Bundle/TwigBundle/composer.json
index 3f2032cee3..3ed1582f6a 100644
--- a/src/Symfony/Bundle/TwigBundle/composer.json
+++ b/src/Symfony/Bundle/TwigBundle/composer.json
@@ -29,6 +29,7 @@
         "symfony/dependency-injection": "~2.8|~3.0",
         "symfony/expression-language": "~2.8|~3.0",
         "symfony/finder": "~2.8|~3.0",
+        "symfony/form": "~2.8|~3.0",
         "symfony/routing": "~2.8|~3.0",
         "symfony/templating": "~2.8|~3.0",
         "symfony/yaml": "~2.8|~3.0",