diff --git a/td/telegram/net/Session.cpp b/td/telegram/net/Session.cpp
index dba699968..8cd0dbf32 100644
--- a/td/telegram/net/Session.cpp
+++ b/td/telegram/net/Session.cpp
@@ -1093,7 +1093,9 @@ void Session::create_gen_auth_key_actor(HandshakeId handshake_id) {
       std::make_unique<AuthKeyHandshakeContext>(DhCache::instance(), shared_auth_data_->public_rsa_key()),
       PromiseCreator::lambda([self = actor_id(this)](Result<std::unique_ptr<mtproto::RawConnection>> r_connection) {
         if (r_connection.is_error()) {
-          LOG_IF(WARNING, r_connection.error().code() != 1) << r_connection.error();
+          if (r_connection.error().code() != 1) {
+            LOG(WARNING) << "Failed to open connection: " << r_connection.error();
+          }
           return;
         }
         send_closure(self, &Session::connection_add, r_connection.move_as_ok());