diff --git a/td/mtproto/SessionConnection.cpp b/td/mtproto/SessionConnection.cpp
index d95ec30ef..139fa3558 100644
--- a/td/mtproto/SessionConnection.cpp
+++ b/td/mtproto/SessionConnection.cpp
@@ -283,7 +283,7 @@ Status SessionConnection::on_packet(const MsgInfo &info, const mtproto_api::dest
 }
 
 Status SessionConnection::on_destroy_auth_key(const mtproto_api::DestroyAuthKeyRes &destroy_auth_key) {
-  CHECK(need_destroy_auth_key_);
+  LOG_CHECK(need_destroy_auth_key_) << static_cast<int32>(mode_);
   LOG(INFO) << to_string(destroy_auth_key);
   return callback_->on_destroy_auth_key();
 }
diff --git a/td/telegram/net/Session.cpp b/td/telegram/net/Session.cpp
index d7e0cca7e..9e461b1d4 100644
--- a/td/telegram/net/Session.cpp
+++ b/td/telegram/net/Session.cpp
@@ -972,6 +972,9 @@ void Session::connection_open_finish(ConnectionInfo *info,
   auto name = PSTRING() << get_name() << "::Connect::" << mode_name << "::" << raw_connection->debug_str_;
   LOG(INFO) << "Finished to open connection " << name;
   info->connection = make_unique<mtproto::SessionConnection>(mode, std::move(raw_connection), &auth_data_);
+  if (can_destroy_auth_key()) {
+    info->connection->destroy_key();
+  }
   info->connection->set_online(connection_online_flag_, is_main_);
   info->connection->set_name(name);
   Scheduler::subscribe(info->connection->get_poll_info().extract_pollable_fd(this));
@@ -1206,11 +1209,6 @@ void Session::loop() {
           need_flush = true;
         }
       }
-      if (can_destroy_auth_key()) {
-        if (main_connection_.connection) {
-          main_connection_.connection->destroy_key();
-        }
-      }
       if (need_flush) {
         connection_flush(&main_connection_);
         need_flush = false;