diff --git a/tests/App/config.yml b/tests/App/config.yml
index 1ab6810e..f72b2d69 100644
--- a/tests/App/config.yml
+++ b/tests/App/config.yml
@@ -5,6 +5,7 @@ framework:
     http_method_override: false
 
 twig:
+    strict_variables: true
     paths:
         - '%kernel.project_dir%/templates'