diff --git a/components/finsh/shell.h b/components/finsh/shell.h
index 83e74972f8..84ebb7e197 100644
--- a/components/finsh/shell.h
+++ b/components/finsh/shell.h
@@ -73,6 +73,7 @@ struct finsh_shell
 void finsh_set_echo(rt_uint32_t echo);
 rt_uint32_t finsh_get_echo(void);
 
+void finsh_system_init(void);
 void finsh_set_device(const char* device_name);
 const char* finsh_get_device(void);