diff --git a/man3/carg.3 b/man3/carg.3
index 1cfe2198c..ee1295a01 100644
--- a/man3/carg.3
+++ b/man3/carg.3
@@ -54,6 +54,20 @@ One has:
 The return value is the range of [\-pi,pi].
 .SH VERSIONS
 These functions first appeared in glibc in version 2.1.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbw24 lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.BR carg (),
+.BR cargf (),
+.BR cargl ()
+T}	Thread safety	MT-Safe
+.TE
 .SH CONFORMING TO
 C99.
 .SH SEE ALSO