diff --git a/telegram-bot-api/Client.cpp b/telegram-bot-api/Client.cpp
index a8d29b8..11c3210 100644
--- a/telegram-bot-api/Client.cpp
+++ b/telegram-bot-api/Client.cpp
@@ -676,7 +676,7 @@ class Client::JsonChat final : public Jsonable {
                                                       [](Slice username) { return td::JsonString(username); }));
           }
           if (user_info->emoji_status_custom_emoji_id != 0) {
-            object("emoji_status_custom_emoji_id", user_info->emoji_status_custom_emoji_id);
+            object("emoji_status_custom_emoji_id", td::to_string(user_info->emoji_status_custom_emoji_id));
           }
           if (!user_info->bio.empty()) {
             object("bio", user_info->bio);