diff --git a/app/main.py b/app/main.py
index 3810378..ab028f9 100644
--- a/app/main.py
+++ b/app/main.py
@@ -102,7 +102,8 @@ async def deal_tab(
     APP_SID: str | None = None,
 ):
     try:
-        b_str = await request.body().decode()
+        body = await request.body()
+        b_str = body.decode()
         result = parse_qs(b_str)
         q = [DOMAIN, PROTOCOL, LANG, APP_SID]
         logger.info(result)