diff --git a/app/api/common.ts b/app/api/common.ts
index 53ab18ed..089dbf02 100644
--- a/app/api/common.ts
+++ b/app/api/common.ts
@@ -25,5 +25,6 @@ export async function requestOpenai(req: NextRequest) {
     },
     method: req.method,
     body: req.body,
+    duplex: !!req.body,
   });
 }