diff --git a/lib/libc/gen/Makefile.inc b/lib/libc/gen/Makefile.inc
index 24cd03d75ab5..2f6ab7d59007 100644
--- a/lib/libc/gen/Makefile.inc
+++ b/lib/libc/gen/Makefile.inc
@@ -62,8 +62,8 @@ MAN+=	alarm.3 arc4random.3 clock.3 \
 MLINKS+=arc4random.3 arc4random_addrandom.3 arc4random.3 arc4random_stir.3
 MLINKS+=ctermid.3 ctermid_r.3
 MLINKS+=directory.3 closedir.3 directory.3 dirfd.3 directory.3 opendir.3 \
-	directory.3 readdir.3 directory.3 rewinddir.3 directory.3 seekdir.3 \
-	directory.3 telldir.3
+	directory.3 readdir.3 directory.3 readdir_r.3 directory.3 rewinddir.3 \
+	directory.3 seekdir.3 directory.3 telldir.3
 MLINKS+=dlopen.3 dlclose.3 dlopen.3 dlerror.3 dlopen.3 dlsym.3
 MLINKS+=err.3 err_set_exit.3 err.3 err_set_file.3 err.3 errc.3 err.3 errx.3 \
 	err.3 verr.3 err.3 verrc.3 err.3 verrx.3 err.3 vwarn.3 err.3 vwarnc.3 \