diff --git a/man3/posix_memalign.3 b/man3/posix_memalign.3
index 48dc77078..f7b919dd4 100644
--- a/man3/posix_memalign.3
+++ b/man3/posix_memalign.3
@@ -179,6 +179,28 @@ was added to glibc in version 2.16.
 The function
 .BR posix_memalign ()
 is available since glibc 2.1.91.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR aligned_alloc (),
+.br
+.BR memalign (),
+.br
+.BR posix_memalign ()
+T}	Thread safety	MT-Safe
+T{
+.BR valloc (),
+.br
+.BR pvalloc ()
+T}	Thread safety	MT-Unsafe init
+.TE
+
 .SH CONFORMING TO
 The function
 .BR valloc ()