diff --git a/website/docs/guide/how-to-integrate-for-non-gki.md b/website/docs/guide/how-to-integrate-for-non-gki.md
index f6b8f655..d8e68c5b 100644
--- a/website/docs/guide/how-to-integrate-for-non-gki.md
+++ b/website/docs/guide/how-to-integrate-for-non-gki.md
@@ -210,9 +210,10 @@ index 068fdbcc9e26..5348b7bb9db2 100644
 @@ -87,6 +87,8 @@ int vfs_fstat(unsigned int fd, struct kstat *stat)
  }
  EXPORT_SYMBOL(vfs_fstat);
- 
+
++#ifdef CONFIG_KSU
 +extern int ksu_handle_stat(int *dfd, const char __user **filename_user, int *flags);
-+
++#endif
  int vfs_fstatat(int dfd, const char __user *filename, struct kstat *stat,
  		int flag)
  {