diff --git a/utilsApi/cached-proxy.ts b/utilsApi/cached-proxy.ts
index 6e1f5367c..5710baa8c 100644
--- a/utilsApi/cached-proxy.ts
+++ b/utilsApi/cached-proxy.ts
@@ -68,7 +68,7 @@ export const createCachedProxy = ({
       if (e instanceof FetcherError && e.status >= 400 && e.status < 500) {
         console.warn(`[CachedProxy]Forwarding ${e.status} error from ${url}`);
         res.status(e.status);
-        res.send({ error: e.message });
+        res.json({ error: e.message });
         return;
       }
       console.warn(`[CachedProxy] Failed to proxy from ${url}`, e);