diff --git a/man3/malloc_hook.3 b/man3/malloc_hook.3
index 948ebda80..8eaa13d7d 100644
--- a/man3/malloc_hook.3
+++ b/man3/malloc_hook.3
@@ -2,6 +2,11 @@
 .\" Distributed under GPL
 .\" Heavily based on glibc documentation
 .\" Polished, added docs, removed glibc doc bug, 2002-07-20, aeb
+.\"
+.\" FIXME
+.\" According to a Fedora downstream patch, malloc hooks are deprecated
+.\" https://bugzilla.redhat.com/show_bug.cgi?id=450187
+.\" Integrate this usptream?
 .TH MALLOC_HOOK 3 2002-07-20 "GNU" "Linux Programmer's Manual"
 .SH NAME
 __malloc_hook, __malloc_initialize_hook,