diff --git a/src/c2se/backend/identity.rs b/src/c2se/backend/identity.rs
index 1b23f12..a0f45cc 100644
--- a/src/c2se/backend/identity.rs
+++ b/src/c2se/backend/identity.rs
@@ -2,22 +2,23 @@ use crate::protobuf::rpc;
 
 const SUBJECT: &str = "bet.beteran.c2se.backend.identity";
 
-pub const SUBJECT_SIGNIN: &str =
-  const_format::concatcp!(SUBJECT, ".Signin");
+pub const SUBJECT_SIGNIN: &str = const_format::concatcp!(SUBJECT, ".Signin");
 /// subject = bet.beteran.c2se.backend.identity.Signin
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct SigninRequest {
-    #[prost(string, tag="1")]
-    pub username: ::prost::alloc::string::String,
-    #[prost(string, tag="2")]
-    pub password: ::prost::alloc::string::String,
-    #[prost(string, tag="3")]
-    pub security_code: ::prost::alloc::string::String,
+  #[prost(string, tag = "1")]
+  pub site_url: ::prost::alloc::string::String,
+  #[prost(string, tag = "2")]
+  pub username: ::prost::alloc::string::String,
+  #[prost(string, tag = "3")]
+  pub password: ::prost::alloc::string::String,
+  #[prost(string, tag = "4")]
+  pub security_code: ::prost::alloc::string::String,
 }
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct SigninResponse {
-    #[prost(message, optional, tag="1")]
-    pub error: ::core::option::Option<rpc::Error>,
-    #[prost(string, optional, tag="2")]
-    pub token: ::core::option::Option<::prost::alloc::string::String>,
+  #[prost(message, optional, tag = "1")]
+  pub error: ::core::option::Option<rpc::Error>,
+  #[prost(string, optional, tag = "2")]
+  pub token: ::core::option::Option<::prost::alloc::string::String>,
 }
diff --git a/src/c2se/frontend/identity.rs b/src/c2se/frontend/identity.rs
index 9b8dc49..f14901e 100644
--- a/src/c2se/frontend/identity.rs
+++ b/src/c2se/frontend/identity.rs
@@ -7,10 +7,12 @@ pub const SUBJECT_SIGNIN: &str = const_format::concatcp!(SUBJECT, ".Signin");
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct SigninRequest {
   #[prost(string, tag = "1")]
-  pub username: ::prost::alloc::string::String,
+  pub site_url: ::prost::alloc::string::String,
   #[prost(string, tag = "2")]
-  pub password: ::prost::alloc::string::String,
+  pub username: ::prost::alloc::string::String,
   #[prost(string, tag = "3")]
+  pub password: ::prost::alloc::string::String,
+  #[prost(string, tag = "4")]
   pub security_code: ::prost::alloc::string::String,
 }
 #[derive(Clone, PartialEq, ::prost::Message)]