diff --git a/tools/gn/bootstrap/bootstrap.py b/tools/gn/bootstrap/bootstrap.py
index 75e2eb4..10dd512 100755
--- a/tools/gn/bootstrap/bootstrap.py
+++ b/tools/gn/bootstrap/bootstrap.py
@@ -472,6 +472,7 @@
       'base/task_scheduler/post_task.cc',
       'base/task_scheduler/priority_queue.cc',
       'base/task_scheduler/scheduler_lock_impl.cc',
+      'base/task_scheduler/scheduler_single_thread_task_runner_manager.cc',
       'base/task_scheduler/scheduler_worker.cc',
       'base/task_scheduler/scheduler_worker_pool_impl.cc',
       'base/task_scheduler/scheduler_worker_pool_params.cc',