diff --git a/website/server/controllers/api-v3/content.js b/website/server/controllers/api-v3/content.js
index 5c8d6ab347..0666cd6d28 100644
--- a/website/server/controllers/api-v3/content.js
+++ b/website/server/controllers/api-v3/content.js
@@ -74,7 +74,7 @@ api.getContent = {
       language = proposedLang;
     }
 
-    const filter = req.query.filter || '';
+    let filter = req.query.filter || '';
     // apply defaults for mobile clients
     if (filter === '') {
       if (req.headers['x-client'] === 'habitica-android') {