diff --git a/app/api/common.ts b/app/api/common.ts
index ad48f16ebc7a..ca8406bb3616 100644
--- a/app/api/common.ts
+++ b/app/api/common.ts
@@ -124,8 +124,8 @@ export async function requestOpenai(req: NextRequest) {
 
     // The latest version of the OpenAI API forced the content-encoding to be "br" in json response
     // So if the streaming is disabled, we need to remove the content-encoding header
-    // But vercel uses gzip to compress the response
-    // So we need to remove the content-encoding header
+    // Because Vercel uses gzip to compress the response, if we don't remove the content-encoding header
+    // The browser will try to decode the response with brotli and fail
     newHeaders.delete("content-encoding");
 
     return new Response(res.body, {