diff --git a/share/man/man9/sbuf.9 b/share/man/man9/sbuf.9
index 8af80ed968f5..e58fb182c9c4 100644
--- a/share/man/man9/sbuf.9
+++ b/share/man/man9/sbuf.9
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 17, 2017
+.Dd May 23, 2018
 .Dt SBUF 9
 .Os
 .Sh NAME
@@ -624,6 +624,7 @@ function returns \-1 if
 was invalid, and zero otherwise.
 .Pp
 The
+.Fn sbuf_bcat ,
 .Fn sbuf_cat ,
 .Fn sbuf_cpy ,
 .Fn sbuf_printf ,