diff --git a/CMake/TdSetUpCompiler.cmake b/CMake/TdSetUpCompiler.cmake
index 5bf25775d..747d0aaa7 100644
--- a/CMake/TdSetUpCompiler.cmake
+++ b/CMake/TdSetUpCompiler.cmake
@@ -127,6 +127,8 @@ function(td_set_up_compiler)
     add_cxx_compiler_flag("-Wodr")
     add_cxx_compiler_flag("-flto-odr-type-merging")
     add_cxx_compiler_flag("-Wno-psabi")
+    add_cxx_compiler_flag("-Wunused-member-function")
+    add_cxx_compiler_flag("-Wunused-private-field")
 
   #  add_cxx_compiler_flag("-Werror")
 
diff --git a/td/telegram/ConfigManager.cpp b/td/telegram/ConfigManager.cpp
index e75cb9c23..c74be539d 100644
--- a/td/telegram/ConfigManager.cpp
+++ b/td/telegram/ConfigManager.cpp
@@ -419,14 +419,14 @@ static ActorOwn<> get_full_config(DcOption option, Promise<tl_object_ptr<telegra
     DcId dc_id_;
     std::shared_ptr<mtproto::PublicRsaKeyInterface> public_rsa_key_;
     vector<unique_ptr<Listener>> auth_key_listeners_;
-
+    /*
     void notify() {
       td::remove_if(auth_key_listeners_, [&](auto &listener) {
         CHECK(listener != nullptr);
         return !listener->notify();
       });
     }
-
+    */
     string auth_key_key() const {
       return PSTRING() << "config_recovery_auth" << dc_id().get_raw_id();
     }