diff --git a/routes/v1.js b/routes/v1.js
index 197563b8..ad42f4ab 100644
--- a/routes/v1.js
+++ b/routes/v1.js
@@ -207,6 +207,9 @@ function addRoutes(app, peliasConfig) {
     isAddressItParse
   );
 
+  // get language adjustments if:
+  // - there's a response
+  // - theres's a lang parameter in req.clean
   const changeLanguageShouldExecute = all(
     hasResponseData,
     not(hasRequestErrors),