diff --git a/include/rthw.h b/include/rthw.h
index 602866b095..0fe01f3073 100644
--- a/include/rthw.h
+++ b/include/rthw.h
@@ -18,7 +18,7 @@
 #ifndef __RT_HW_H__
 #define __RT_HW_H__
 
-#include <rtthread.h>
+#include <rtdef.h>
 
 #ifdef __cplusplus
 extern "C" {