diff --git a/ydb/core/http_proxy/http_req.cpp b/ydb/core/http_proxy/http_req.cpp
index 9b824d2815dc..bb33ee48e78d 100644
--- a/ydb/core/http_proxy/http_req.cpp
+++ b/ydb/core/http_proxy/http_req.cpp
@@ -93,7 +93,7 @@ namespace NKikimr::NHttpProxy {
         case NYdb::EStatus::ABORTED:
             return TException("Aborted", HTTP_BAD_REQUEST);
         case NYdb::EStatus::UNAVAILABLE:
-            return TException("Unavailable", HTTP_BAD_REQUEST);
+            return TException("Unavailable", HTTP_SERVICE_UNAVAILABLE);
         case NYdb::EStatus::TIMEOUT:
             return TException("RequestExpired", HTTP_BAD_REQUEST);
         case NYdb::EStatus::BAD_SESSION: