diff --git a/client/src/pages/api/openapi/v1/chat/completions.ts b/client/src/pages/api/openapi/v1/chat/completions.ts
index 6a480af46..11929e6aa 100644
--- a/client/src/pages/api/openapi/v1/chat/completions.ts
+++ b/client/src/pages/api/openapi/v1/chat/completions.ts
@@ -169,7 +169,7 @@ export default withNextCors(async function handler(req: NextApiRequest, res: Nex
           model: model.chat.chatModel,
           usage: { prompt_tokens: 0, completion_tokens: 0, total_tokens: 0 },
           choices: [
-            { message: [{ role: 'assistant', content: response }], finish_reason: 'stop', index: 0 }
+            { message: { role: 'assistant', content: response }, finish_reason: 'stop', index: 0 }
           ]
         });
       }
@@ -298,7 +298,7 @@ export default withNextCors(async function handler(req: NextApiRequest, res: Nex
         model: model.chat.chatModel,
         usage: { prompt_tokens: 0, completion_tokens: 0, total_tokens: tokens },
         choices: [
-          { message: [{ role: 'assistant', content: answer }], finish_reason: 'stop', index: 0 }
+          { message: { role: 'assistant', content: answer }, finish_reason: 'stop', index: 0 }
         ]
       });
     }