diff --git a/tools/code_gen/binary/fast_rpc/service_define/inc_server_api.yaml b/tools/code_gen/binary/fast_rpc/service_define/inc_server_api.yaml
index f2ede2b..5d175af 100644
--- a/tools/code_gen/binary/fast_rpc/service_define/inc_server_api.yaml
+++ b/tools/code_gen/binary/fast_rpc/service_define/inc_server_api.yaml
@@ -8,7 +8,7 @@ functions:
 
 - name: GetIncNumberByKeyWithIncStep
   input: ReqKeyWithIncNum
-  output: ReqKeyWithIncNum
+  output: RspIdWithIncNum
   comment: 传入key和递增的步长，获取递增数字
 
 - name: GetIncNumberListByKeyList