diff --git a/runtime/thread_list.h b/runtime/thread_list.h
index 363cab8..f97ecd3 100644
--- a/runtime/thread_list.h
+++ b/runtime/thread_list.h
@@ -161,7 +161,7 @@
   size_t RunCheckpoint(Closure* checkpoint_function, bool includeSuspended)
       REQUIRES(!Locks::thread_list_lock_, !Locks::thread_suspend_count_lock_);
 
-  void DumpUnattachedThreads(std::ostream& os)
+  void DumpUnattachedThreads(std::ostream& os, bool dump_native_stack)
       REQUIRES(!Locks::thread_list_lock_);
 
   void SuspendAllDaemonThreadsForShutdown()