diff --git a/frontend/appflowy_flutter/lib/user/application/auth/backend_auth_service.dart b/frontend/appflowy_flutter/lib/user/application/auth/backend_auth_service.dart
index b5cf413603..4d03788c8c 100644
--- a/frontend/appflowy_flutter/lib/user/application/auth/backend_auth_service.dart
+++ b/frontend/appflowy_flutter/lib/user/application/auth/backend_auth_service.dart
@@ -70,7 +70,6 @@ class BackendAuthService implements AuthService {
       ..name = LocaleKeys.defaultUsername.tr()
       ..email = userEmail
       ..password = password
-      ..isAnon = true
       // When sign up as guest, the auth type is always local.
       ..authType = AuthenticatorPB.Local
       ..deviceId = await getDeviceId();
diff --git a/frontend/rust-lib/flowy-user-pub/src/entities.rs b/frontend/rust-lib/flowy-user-pub/src/entities.rs
index fce59b7994..857a735edb 100644
--- a/frontend/rust-lib/flowy-user-pub/src/entities.rs
+++ b/frontend/rust-lib/flowy-user-pub/src/entities.rs
@@ -42,7 +42,6 @@ pub struct SignUpParams {
   pub password: String,
   pub auth_type: Authenticator,
   pub device_id: String,
-  pub is_anon: bool,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
diff --git a/frontend/rust-lib/flowy-user/src/entities/auth.rs b/frontend/rust-lib/flowy-user/src/entities/auth.rs
index 09b71eb6d4..dbfd9b811a 100644
--- a/frontend/rust-lib/flowy-user/src/entities/auth.rs
+++ b/frontend/rust-lib/flowy-user/src/entities/auth.rs
@@ -57,9 +57,6 @@ pub struct SignUpPayloadPB {
 
   #[pb(index = 5)]
   pub device_id: String,
-
-  #[pb(index = 6)]
-  pub is_anon: bool,
 }
 
 impl TryInto<SignUpParams> for SignUpPayloadPB {
@@ -76,7 +73,6 @@ impl TryInto<SignUpParams> for SignUpPayloadPB {
       password: password.0,
       auth_type: self.auth_type.into(),
       device_id: self.device_id,
-      is_anon: self.is_anon,
     })
   }
 }