diff --git a/src/c2se/backend/identity.rs b/src/c2se/backend/identity.rs
index 5febeeb..79147f8 100644
--- a/src/c2se/backend/identity.rs
+++ b/src/c2se/backend/identity.rs
@@ -20,5 +20,5 @@ 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>,
+  pub session_id: ::core::option::Option<::prost::alloc::string::String>,
 }
diff --git a/src/c2se/frontend/identity.rs b/src/c2se/frontend/identity.rs
index 35372f5..eeca2c7 100644
--- a/src/c2se/frontend/identity.rs
+++ b/src/c2se/frontend/identity.rs
@@ -21,5 +21,5 @@ 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>,
+  pub session_id: ::core::option::Option<::prost::alloc::string::String>,
 }
diff --git a/src/ss/member/identity.rs b/src/ss/member/identity.rs
index 1375ca6..b96624e 100644
--- a/src/ss/member/identity.rs
+++ b/src/ss/member/identity.rs
@@ -76,5 +76,5 @@ 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>,
+  pub session_id: ::core::option::Option<::prost::alloc::string::String>,
 }