diff --git a/man2/madvise.2 b/man2/madvise.2
index ebbb523ee..53cd93851 100644
--- a/man2/madvise.2
+++ b/man2/madvise.2
@@ -187,6 +187,7 @@ mapped, or are outside the address space of the process.
 POSIX.1b.
 POSIX.1-2001 describes
 .BR posix_madvise (3)
+.\" FIXME . Write a posix_fadvise(3) page.
 with constants
 .BR POSIX_MADV_NORMAL ,
 etc.,