diff --git a/aos/linux_code/init.h b/aos/linux_code/init.h
index 538684e..ab1aab5 100644
--- a/aos/linux_code/init.h
+++ b/aos/linux_code/init.h
@@ -25,6 +25,9 @@
 // behavior without calling Init*.
 void WriteCoreDumps();
 
+// Sets the current thread's realtime priority.
+void SetCurrentThreadRealtimePriority(int priority);
+
 }  // namespace aos
 
 #endif  // AOS_LINUX_CODE_INIT_H_