diff --git a/man2/wait4.2 b/man2/wait4.2
index 68e49adbd..bf17d31d9 100644
--- a/man2/wait4.2
+++ b/man2/wait4.2
@@ -132,6 +132,13 @@ As for
 .BR waitpid (2).
 .SH "CONFORMING TO"
 4.3BSD.
+
+SUSv1 included a specification of
+.BR wait3 ();
+SUSv2 included
+.BR wait3 (),
+but marked it LEGACY;
+SUSv3 removed it.
 .SH NOTES
 Including
 .I <sys/time.h>