diff --git a/include/rtthread.h b/include/rtthread.h
index e2654496b01822b547da33206f93c93b93521102..9cf3e49978d24ec62eede3ff932443a368819e25 100644
--- a/include/rtthread.h
+++ b/include/rtthread.h
@@ -312,7 +312,9 @@ void rt_interrupt_leave(void);
 rt_int32_t rt_sprintf(char *buf ,const char *format,...);
 rt_int32_t rt_vsprintf(char *dest, const char *format, va_list arg_ptr);
 rt_int32_t rt_sprintf(char *buf ,const char *format,...);
-rt_int32_t rt_snprintf(char *buf, rt_size_t size, const char *format, ...);
+rt_int32_t rt_snprintf(char *buf, rt_size_t size, const char *format, ...);
+
+rt_device_t rt_console_set_device(const char* name);
 void rt_kprintf(const char *fmt, ...);
 
 rt_err_t rt_get_errno(void);