diff --git a/libc/include/dirent.h b/libc/include/dirent.h
index 7ac4ab7..d6819f2 100644
--- a/libc/include/dirent.h
+++ b/libc/include/dirent.h
@@ -80,8 +80,8 @@
 DIR* fdopendir(int __dir_fd);
 struct dirent* readdir(DIR* __dir);
 struct dirent64* readdir64(DIR* __dir) __INTRODUCED_IN(21);
-int readdir_r(DIR* __dir, struct dirent* __entry, struct dirent** __buffer);
-int readdir64_r(DIR* __dir, struct dirent64* __entry, struct dirent64** __buffer) __INTRODUCED_IN(21);
+int readdir_r(DIR* __dir, struct dirent* __entry, struct dirent** __buffer) __attribute__((__deprecated__("readdir_r is deprecated; use readdir instead")));
+int readdir64_r(DIR* __dir, struct dirent64* __entry, struct dirent64** __buffer) __INTRODUCED_IN(21) __attribute__((__deprecated__("readdir64_r is deprecated; use readdir64 instead")));
 int closedir(DIR* __dir);
 void rewinddir(DIR* __dir);
 void seekdir(DIR* __dir, long __location) __INTRODUCED_IN(23);