diff --git a/client-protocol/LingChairClient.ts b/client-protocol/LingChairClient.ts
index 19dcad5..063ec8d 100644
--- a/client-protocol/LingChairClient.ts
+++ b/client-protocol/LingChairClient.ts
@@ -228,6 +228,6 @@ export default class LingChairClient {
             } : json),
             code: re.status,
         } as ApiCallbackMessage)
-        return json.data.hash as string
+        return json.data.file_hash as string
     }
 }