diff --git a/td/telegram/AuthManager.cpp b/td/telegram/AuthManager.cpp
index 44c2a117..de01b9e3 100644
--- a/td/telegram/AuthManager.cpp
+++ b/td/telegram/AuthManager.cpp
@@ -102,7 +102,7 @@ tl_object_ptr<td_api::AuthorizationState> AuthManager::get_authorization_state_o
     case State::WaitCode:
       return send_code_helper_.get_authorization_state_wait_code();
     case State::WaitQrCodeConfirmation:
-      return make_tl_object<td_api::authorizationStateWaitOtherDeviceConfirmation>("tg://login?" +
+      return make_tl_object<td_api::authorizationStateWaitOtherDeviceConfirmation>("tg://login?token=" +
                                                                                    base64url_encode(login_token_));
     case State::WaitPassword:
       return make_tl_object<td_api::authorizationStateWaitPassword>(
diff --git a/td/telegram/ContactsManager.cpp b/td/telegram/ContactsManager.cpp
index 7f4be050..5dd3d301 100644
--- a/td/telegram/ContactsManager.cpp
+++ b/td/telegram/ContactsManager.cpp
@@ -4141,7 +4141,7 @@ void ContactsManager::get_account_ttl(Promise<int32> &&promise) const {
 
 void ContactsManager::confirm_qr_code_authentication(string link,
                                                      Promise<td_api::object_ptr<td_api::session>> &&promise) {
-  Slice prefix("tg://login?");
+  Slice prefix("tg://login?token=");
   if (!begins_with(to_lower(link), prefix)) {
     return promise.set_error(Status::Error(400, "AUTH_TOKEN_INVALID"));
   }