diff --git a/td/telegram/Td.cpp b/td/telegram/Td.cpp
index a150e6c..cd66d91 100644
--- a/td/telegram/Td.cpp
+++ b/td/telegram/Td.cpp
@@ -4827,10 +4827,10 @@ Status Td::set_parameters(td_api::object_ptr<td_api::tdlibParameters> parameters
   if (options.application_version.empty()) {
     return Status::Error(400, "Application version must be non-empty");
   }
-  if (options.api_id != 21724) {
-    options.application_version += ", TDLib ";
-    options.application_version += TDLIB_VERSION;
-  }
+  // if (options.api_id != 21724) {
+  //   options.application_version += ", TDLib ";
+  //   options.application_version += TDLIB_VERSION;
+  // }
   G()->set_mtproto_header(std::make_unique<MtprotoHeader>(options));
 
   state_ = State::Decrypt;