1 files changed, 13 insertions, 0 deletions
diff --git a/man3/on_exit.3 b/man3/on_exit.3
index 31d2b823a7..2502f1395b 100644
--- a/man3/on_exit.3
+++ b/man3/on_exit.3
@@ -78,6 +78,19 @@ The
 .BR on_exit ()
 function returns the value 0 if successful; otherwise
 it returns a nonzero value.
+.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 on_exit ()
+T}	Thread safety	MT-Safe
+.TE
+
 .SH CONFORMING TO
 This function comes from SunOS 4, but is also present in glibc.
 It no longer occurs in Solaris (SunOS 5).