diff --git a/src/shrpx_connection_handler.cc b/src/shrpx_connection_handler.cc
index 307b3c9c..03de0911 100644
--- a/src/shrpx_connection_handler.cc
+++ b/src/shrpx_connection_handler.cc
@@ -352,7 +352,7 @@ void ConnectionHandler::graceful_shutdown_worker() {
     (void)reopen_log_files();
     join_worker();
     ev_async_send(get_loop(), &thread_join_asyncev_);
-    delete log_config();
+    delete_log_config();
   });
 #endif // NOTHREADS
 }
diff --git a/src/shrpx_worker.cc b/src/shrpx_worker.cc
index 84b604ab..8b1a74fd 100644
--- a/src/shrpx_worker.cc
+++ b/src/shrpx_worker.cc
@@ -313,7 +313,7 @@ void Worker::run_async() {
   fut_ = std::async(std::launch::async, [this] {
     (void)reopen_log_files();
     ev_run(loop_);
-    delete log_config();
+    delete_log_config();
   });
 #endif // !NOTHREADS
 }