diff --git a/src/handlers/questionnaire.lisp b/src/handlers/questionnaire.lisp
index 28580e6..5a65e02 100644
--- a/src/handlers/questionnaire.lisp
+++ b/src/handlers/questionnaire.lisp
@@ -13,7 +13,7 @@
 
 (defun process-questionnaire-get (lang)
   (check-type lang string)
-  (setf *html-lang* lang)
+  (setf spinneret:*html-lang* lang)
   (ml-survey/views:sus-form))
 
 (defun process-questionnaire-post (request survey)