diff --git a/share/man/man9/sbuf.9 b/share/man/man9/sbuf.9
index e4af91625392..a48d61de8a38 100644
--- a/share/man/man9/sbuf.9
+++ b/share/man/man9/sbuf.9
@@ -308,7 +308,7 @@ and \-1, respectively, if the buffer overflowed.
 The
 .Nm sbuf
 family of functions first appeared in
-.Fx 5.0 .
+.Fx 4.4 .
 .Sh AUTHORS
 .An -nosplit
 The