diff --git a/include/dirent.h b/include/dirent.h
index 7dc16e766f88..653bf390bbe1 100644
--- a/include/dirent.h
+++ b/include/dirent.h
@@ -94,6 +94,7 @@ void seekdir __P((DIR *, long));
 int scandir __P((const char *, struct dirent ***,
     int (*)(struct dirent *), int (*)(const void *, const void *)));
 int alphasort __P((const void *, const void *));
+int getdents __P((int, char *, int));
 int getdirentries __P((int, char *, int, long *));
 int readdir_r __P((DIR *, struct dirent *, struct dirent **));
 #endif /* not POSIX */