diff --git a/telegram-bot-api/Client.cpp b/telegram-bot-api/Client.cpp
index 7778364..3502e19 100644
--- a/telegram-bot-api/Client.cpp
+++ b/telegram-bot-api/Client.cpp
@@ -3655,6 +3655,9 @@ class Client::JsonChatMemberUpdated final : public td::Jsonable {
     if (update_->invite_link_ != nullptr) {
       object("invite_link", JsonChatInviteLink(update_->invite_link_.get(), client_));
     }
+    if (update_->via_join_request_) {
+      object("via_join_request", td::JsonTrue());
+    }
     if (update_->via_chat_folder_invite_link_) {
       object("via_chat_folder_invite_link", td::JsonTrue());
     }